Betacam

Betacam Oxide / Betacam SP PAL, NTSC video cassettes
dark grey, rectangular plastic cassette, printed with text: Anti-Static Lid Betacam SP

Betacam SP video cassette

introduction to Betacam cassette transfer

Betacam (launched 1982) and Betacam SP 'Superior Performance' (1986) are the analog versions of the Betacam component video format, on half inch cassette-based tape. The original Betacam tapes are often referred to as Betacam Oxide, due to their ferric oxide tape formulation. As with their digital successors (Digital Betacam / Betacam SX / MPEG IMX), Betacam Oxide and Betacam SP were particularly popular in broadcast contexts.

At Greatbear, we've the wide range of equipment and experience needed to make the best quality transfers from all variations of Betacam video tape.

We offer a range of delivery formats for our video transfers. We use the International Association of Sound & Audiovisual Archives Guidelines for the Preservation of Video Recordings, delivering FFV1 lossless files or 10-bit uncompressed video files in .mkv or .mov containers. We create viewing files as H264 encoded .mp4 files or DVD. We can deliver any other digital video files,  according to your needs. 

We can provide the appropriately-sized usb media for your files, or use media supplied by you, or deliver your files online. Files delivered on hard drive can be for any operating system MacOS, Windows or GNU/Linux and filesystems (HFS+, NTFS or EXT3).

Due to varying tape durations and their gradual physical degradation, it’s not always appropriate to create fixed prices for our services. We’ve found that assessing tapes prior to confirming costs a more accurate and fair method.

We offer free assessments please contact us to discuss your project.

 

Betacam machines

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Betacam format variation

Betacam
tape type
colour encoding
system
BVW75 analogue replay & digitisingDVW D-Beta replay & SDI transfer4 audio channels capturedpreservation of LTC & VITC timecode supported
Betacam OxidePALn/a
Betacam SPPAL
Betacam OxideNTSCn/a
Betacam SPNTSC

Betacam SP cassette shell open, showing ½ inch / 12.7mm tape inside

Sony J-3 SDI & Sony BVW 75 (NTSC) Betacam SP machines

Betacam SP cassette dimensions: 15.6 x 9.6 cm. We also transfer the larger 25.3 x 14.4 cm tapes

Betacam tape risks & vulnerabilities

Betacam and Betacam SP used different tape formulations and not all machines are able to replay the earlier ferric oxide based recordings. Many of these earlier 'Oxide' tapes and some Betacam SP suffer from binder hydrolysis or 'sticky shed syndrome' and need treatment before they can be safely replayed and digitised.

The half inch wide tape used for these formats is thinner than earlier analogue formats at 14µm or 20µm thick. Any mould growth on the edge of the tape pack can be catastrophic, sticking the top or bottom edge of the tape layers together and ripping the tape when wound or played.

Betacam was a very successful and popular broadcast format and machine obsolescence isn't a huge issue at the moment. Generally these machines are reliable and long-lasting but this won't always be the situation, and key spares must be sourced and preserved for the future.

Betacam video history

First developed by Sony in 1982, the Betacam component video format was aimed at the professional and broadcast market.

By recording luminance (Y) to one track and colour (R-Y/B-Y) to a separate track, Betacam was able to achieve 300 lines of horizontal luminance resolution and 120 lines chrominance resolution, on a relatively cheap cassette-based format (cf. 30 lines chrominance resolution for VHS, Betamax, U-matic and Video8 formats).

Betacam SP, which was introduced in 1986, replaced ferric oxide tape with denser, metal-formulated tape, allowing an increase in horizontal luminance resolution to 340 lines, and the development of larger cassettes, extending recording time to 90 minutes. Betacam SP also added FM audio recording to support four audio channels available for recording and playback.

Betacam SP became an industry standard in television acquisition and post-production in the 1990s.