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$607 (€529)
Recommended price: ~ $802 (€699)
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Specifications and features

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Panasonic DMR-BWT850EC, 1 TB Blu-ray recorder

Recording two channels while watching an already stored programme, then burning everything to a disc that will still be readable in ten years: the hard drive Blu-ray recorder has become a rare category, and Panasonic is one of the last to maintain it. This model sits at the top of the range, with one terabyte of storage, two HD DTT tuners and a video processing block capable of converting Full HD to Ultra HD.

Two tuners and a thousand hours of programmes

The two DVB-T tuners operate in parallel: two different programmes can be recorded simultaneously to the hard drive, including in high definition. “DR” mode records the stream as broadcast, without recompression, providing around 259 hours of HD at 8 Mbit/s and twice as much in standard definition. As actual DTT bitrates vary from one channel to another, these figures remain approximate.

The rest of the time, the choice is between quality and capacity. HG to HM modes recompress HD and extend capacity from 157 to 684 hours; XP to EP modes, inherited from DVD, switch to standard definition and reach up to 1,724 hours. Keyword recording complements manual scheduling: enter a term, and the device searches the electronic programme guide and automatically starts the corresponding recordings. Pause Live TV and Rewind Live TV use the hard drive as a buffer for the current channel.

A useful clarification in 2026: these tuners receive DVB-T, not DVB-T2. Standard HD DTT channels, broadcast in MPEG-4 over DVB-T, are received without difficulty; the ultra-high-definition multiplex, which relies on DVB-T2 and HEVC, is not supported by the device.

Burn discs to keep your recordings

The hard drive serves as a working area, while the recorder provides long-term storage. A 25 GB BD-R or BD-RE holds almost six and a half hours of HD in “DR” mode, or seventeen and a half hours in HM mode; 50 GB dual-layer discs double the capacity. Recordable DVDs and DVD-RAM are still supported for standard definition, from one to eight hours depending on the mode on 4.7 GB media.

Copying a programme from the hard drive to Blu-ray remains the only way to take it out of the device in a durable format: there is no transfer to a computer or USB flash drive. This is standard operation for this category, due to broadcast protections, but it is worth bearing in mind before accumulating hundreds of hours on the internal drive.

The Blu-ray player included

For playback, the catalogue is broad: BD-Video, Full HD 3D Blu-ray, DVD, audio CD, CD-Rs burned with FLAC, ALAC, WAV, MP3 or AAC, and data discs filled with MKV and Xvid. The 4K Direct Chroma upscaling circuit reconstructs colour information before scaling to 3840 × 2160, which requires an Ultra HD television to see any benefit. Playback of 4K MP4 files is supported up to 100 Mbit/s, at 25 and 30 frames per second, and up to 4096 × 2160 in 24p.

3D has not been abandoned: 3D Blu-ray playback, 2D-to-3D conversion and adjustable effect intensity. On the audio side, Pure Sound mode switches off unnecessary video circuits when listening to a CD, while 96 kHz Surround Re-Master widens the stereo soundstage, with one consequence to be aware of: it changes the CD playback sampling frequency to 88.2 kHz.

Wi-Fi, DLNA and remote playback

The built-in Wi-Fi module avoids running a cable to the TV unit, while the Ethernet port remains available for those who prefer a wired network. As a DLNA client, the device accesses a NAS or computer with a generous list of formats, from MPEG to DSD, including MKV, FLAC and Vorbis. As a server, the list is reduced to MPEG, AVCHD and JPEG: recordings can be sent to a television in another room, but not the entire media library.

The “TV Anywhere” block covers three distinct uses: scheduling a recording from a phone, remotely watching what is stored on the hard drive, and streaming live television to another screen in the home. Two limitations apply: only one device can connect at a time, and certain pay-per-view programmes are excluded from remote viewing. Miracast mirrors the screen of a certified Android mobile device from version 4.2 onwards. Finally, the built-in web browser does not support Flash or certain character sets, making some websites unusable.

SD cards, USB drives and external hard drives

The card reader supports SD, SDHC and SDXC formats, with direct playback of MP4, AVCHD, AVCHD 3D and JPEG. Videos and photos from a camera can be copied to the hard drive, then burned to BD-RE or BD-R, solving the issue of archiving memory cards without using a computer.

Two USB 2.0 ports are provided, one on the front and one on the rear. The first is mainly used for reading a USB drive: MPEG2, MP4, Xvid and MKV videos, photos, and an extensive audio list including DSD, FLAC and ALAC. The second accepts an external hard drive to extend recording capacity. Pay attention to the direction of transfers: from USB media, copying to BD-RE, BD-R or DVD-RAM is possible, but not to the internal hard drive.

A slim unit with limited connectivity

At 430 millimetres wide, 59 high and weighing 2.4 kilos, the chassis fits beneath a television without requiring a dedicated shelf, resting on hi-fi-style feet. The HDMI output handles everything, picture and sound, and the cable is supplied. A coaxial digital output allows connection to a slightly older home cinema amplifier, although it is limited to compressed formats and carries neither Dolby TrueHD nor DTS-HD Master Audio.

The rear panel is deliberately uncluttered: no SCART, no video input, and no analogue audio input or output. The consequence is straightforward and should be considered before purchase: programmes from an operator set-top box or satellite decoder cannot be captured by this device, whose only television source is its own aerial input. VIERA Link compatibility sends basic controls through the television remote control. Power consumption remains low, at 28 W in operation and 0.2 W in standby, with the latter figure assuming quick start is disabled: the convenience of “Quick Start” comes at the cost of standby power.

Technical specifications

Overview

  • Type: Blu-ray recorder / recorder / player with dual HD DTT tuner, 1 TB

Picture quality

  • Direct Chroma 4K upscaling
  • 4K video playback (4K 24 / 25 / 30p)
  • 4K JPEG playback
  • 2D-3D conversion
  • 3D effect controller

Sound quality

  • Pure Sound mode
  • 96 kHz Surround Re-Master (sampling frequency for CD playback set to 88.2 kHz)

Disc playback

  • Full HD 3D BD-ROM / BD-Video
  • BD-RE / BD-RE DL: BDAV, AVCHD, AVCHD 3D, JPEG, 3D Photo
  • BD-R / BD-R DL: BDAV, AVCHD, AVCHD 3D, Xvid, MKV
  • DVD: MPEG2 (Video)
  • DVD-RAM: MPEG2 (VR), AVCHD, JPEG, 3D Photo
  • DVD-R / DVD-R DL: MPEG2 (Video), AVCHD, Xvid, MKV, JPEG, 3D Photo
  • DVD-RW: MPEG2 (Video / VR), AVCHD
  • +R / +R DL: +VR, AVCHD, JPEG, 3D Photo
  • +RW: +VR, AVCHD
  • CD: CD-DA, DTS-CD
  • CD-R / RW: Xvid, MKV, JPEG, 3D Photo, AAC, ALAC, FLAC, MP3, WMA, WAV, CD-DA, DTS-CD
  • Discs recorded and finalized on recorders
  • 4K Ultra HD Blu-ray: not compatible

Built-in hard drive

  • Capacity: 1 TB
  • Additional storage with external hard drive

Recording time

  • Hard drive
    • DR HD mode (8 Mbps): approx. 259 h
    • DR SD mode (4 Mbps): approx. 518 h
    • HG / HX / HE / HL / HM modes: approx. 157 h / 235 h / 353 h / 472 h / 684 h
    • XP / SP / LP / EP modes: approx. 215 h / 431 h / 862 h / 1724 h
  • BD-RE / BD-R 25 GB
    • DR HD mode (8 Mbps): approx. 6 h 30 min
    • DR SD mode (4 Mbps): approx. 13 h
    • HG / HX / HE / HL / HM modes: approx. 4 h / 6 h / 9 h / 12 h / 17 h 30
    • XP / SP / LP / EP modes: approx. 5 h 15 min / 10 h 30 min / 21 h / 42 h
  • BD-RE DL / BD-R DL 50 GB
    • DR HD mode (8 Mbps): approx. 13 h
    • DR SD mode (4 Mbps): approx. 26 h
    • HG / HX / HE / HL / HM modes: approx. 8 h / 12 h / 18 h / 24 h / 35 h
    • XP / SP / LP / EP modes: approx. 10 h 30 min / 21 h / 42 h / 84 h
  • DVD-RAM / DVD-R / -RW / +R / +RW 4.7 GB
    • XP / SP / LP / EP modes: approx. 1 h / 2 h / 4 h / 8 h
  • DVD-R DL / +R DL 8.5 GB
    • XP / SP / LP / EP modes: approx. 1 h 45 min / 3 h 35 min / 7 h 10 min / 14 h 20 min
  • DVD-RAM 9.4 GB
    • XP / SP / LP / EP modes: approx. 2 h / 4 h / 8 h / 16 h
  • Bit rates are approximate; recording time in DR mode may vary depending on the broadcast bit rate

Tuner

  • Tuner system: DVB-T x 2
  • Channel coverage: VHF 5-12, UHF 21-68

Easy operation

  • Keyword recording
  • Live TV Pause and Live TV Rewind
  • Quick operation: direct navigator
  • Quick operation: electronic programme guide
  • Quick operation: disc tray opening
  • VIERA Link
  • “Quick Start” must be enabled and “Power Save for Network Standby” must be disabled to activate “Quick Start”

Network connectivity and applications

  • Built-in Wi-Fi
  • Miracast (compatible with Miracast-certified Android devices version 4.2 and later)
  • Multiroom TV Streaming
  • TV Anywhere
    • Remote recording
    • Remote viewing
  • Panasonic Media Center (available on the iOS App Store and Google Play Android)
  • DIGA Player application
  • VIERA Connect
  • Internet Apps
  • Internet browser (does not support Flash or certain fonts, such as Chinese; some website functions may not be available)
  • DLNA
    • Client: MPEG, MP4, AVCHD, Xvid, MKV, JPEG, AAC, Dolby Digital, ALAC, DSD, FLAC, LPCM, MP3, Vorbis, WMA, WAV
    • Server: MPEG, AVCHD, JPEG
  • Remote viewing and Multiroom TV Streaming are not compatible with certain “pay-per-view” programmes
  • Remote access is only possible for one device at a time
  • Requires a browser on a PC, smartphone or tablet, as well as an internet connection

Connections

  • HDMI output
  • Coaxial digital audio output
  • LAN terminal (Ethernet)
  • HDMI cable included

USB port

  • Front USB
  • Rear USB
  • Standard: USB 2.0 High Speed
  • Playback from mass storage
    • MPEG2, MP4, Xvid, MKV, JPEG, 3D Photo
    • AAC, ALAC, DSD, FLAC, MP3, WMA, WAV
  • Transfer from mass storage (2)
    • To BD-RE / -R: AVCHD, AVCHD 3D, JPEG (without BD-R), 3D Photo (without BD-R)
    • To DVD-RAM: JPEG, 3D Photo
  • Broadcast Stream
  • External hard drive

SD memory card

  • Slot available
  • Compatible media: SD, SDHC, SDXC
  • Playback: MP4, AVCHD, AVCHD 3D, JPEG, 3D Photo
  • Transfer to HDD: MP4, AVCHD, AVCHD 3D, JPEG, 3D Photo
  • Transfer to BD-RE / -R: AVCHD, AVCHD 3D, JPEG (without BD-R), 3D Photo (without BD-R)
  • Transfer to DVD-RAM: JPEG, 3D Photo
  • From BD-RE: JPEG, 3D Photo
  • From HDD: MP4, JPEG, 3D Photo
  • The Lumix camera must be equipped with the DLNA (DMR) function

Power supply and consumption

  • Power supply: AC 220-240 V, 50 Hz
  • Power consumption during normal use: 28 W
  • Standby power consumption (Quick Start Off, RF OUT Aerial Signal Off): 0.2 W

Dimensions and weight

  • Dimensions (W x H x D): 430 x 59 x 199 mm (excluding protruding parts and feet)
  • Weight: 2.4 kg
  • Compact design with Hi-Fi feet

Frequently Asked Questions

Can you record channels from an internet box or satellite subscription?

No. The device records only what its own tuners receive via the rooftop antenna input. The lack of a video input and SCART socket prevents it from capturing the output of any external decoder.

Do you need a 4K TV to benefit from upscaling?

Yes. Conversion to 3840 × 2160 is performed via the HDMI output and only makes sense if the display supports this signal. On a Full HD television, the image is output in 1080p and processing is not applied.

What happens when you connect a USB hard drive for the first time?

The device formats it for its own use, which erases all of its contents. The drive then becomes dependent on this recorder: programs stored on it cannot be played back on a computer or another machine.

Are burned Blu-rays playable on another player?

Recordings are written in BDAV format, which differs from the BD-Video format used on commercial discs. Most standalone Blu-ray players support it, but compatibility is not universal, especially on very old players or on computers. For DVDs, finalization is required before playback on another device.

How much recording time fits on a 25 GB Blu-ray?

About six and a half hours in high definition without recompression, thirteen hours in standard definition, and up to seventeen and a half hours in HM mode, the most economical of the HD modes. A 50 GB dual-layer disc doubles these durations.

Can Pure Sound mode be used at the same time as video?

No, its purpose is to put the video circuitry into standby while listening to music, whether from a CD or a file. It activates when no image is needed and deactivates as soon as video content is played.

Can 4K videos from a camera be played directly from its memory card?

Yes, the card reader supports 4K MP4 files up to 100 Mbit/s, with immediate playback on the television and the option to copy them to the internal hard drive for later burning.

User reviews

Michel

Excellent device, easy to use, very reliable, which I really appreciate as I own two other PANASONIC recorders, the DRM-BWT745, that have been working perfectly for years.

Comment from December 09, 2025 — Experience from July 05, 2025

Automatically translated — Show original (French)
Excellent appareil, facile d'utilisation, très fiable, que j'apprécie énormément car je possède 2 autres enregisteurs PANASONIC des DRM-BWT745 qui fonctionnent parfaitement depuis des années

Christian

excellent product with no real competition at the moment, unfortunately;
it offers numerous programming and editing options
however, I find it unacceptable that for a device at this price, Panasonic didn’t include an EJECT (disc) button on the remote control — it’s the first time I haven’t found this button on the remote of a device with an audio or video disc drive!!

Comment from November 03, 2025 — Experience from October 23, 2025

Automatically translated — Show original (French)
excellent produit sans réelle concurrence actuellement malheureusement;
il dispose de nombreuses possibilités de programmation et d'édition
par contre je trouve inadmissible que pour un appareil de ce prix, Panasonic n'ait pas intégré une touche EJECT (disque) sur la télécommande - c'est bien la première fois que je ne trouve pas cette touche sur la télécommande d'un appareil disposant d'un lecteur de disque audio ou vidéo!!

Vincent

Panasonic digital video recorders are easy to use and offer UHD quality. They more than fulfill the roles of a VCR and a Blu-ray recorder. This recent model lives up to its predecessors. Very handy network features let you watch files on different players, PCs… in short, I’m a die-hard fan of this kind of equipment.

Comment from September 01, 2025 — Experience from November 22, 2024

Automatically translated — Show original (French)
Les magnétoscopes numériques Panasonic sont d'une simplicité d'utilisation et d'une qualité UHD. Ils remplissent largement la fonction magnéto et graveur Blue ray. Ce modèle récent est digne de ses prédécesseurs. Des fonctions réseaux très pratiques pour regarder les fichiers sur différents lecteurs, PC… bref je suis un inconditionnel de ce type de matériel
  • Eco-contribution of €29.25 included in the sale price.
  • GTIN / EAN: 5025232848997
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