0
edits
YSTV Archive: Difference between revisions
From YSTV History Wiki
→Current Formats: describe them
Dummy User (talk | contribs) (→Umatic and Mmatic: Beta, VHS) |
Dummy User (talk | contribs) (→Current Formats: describe them) |
||
| Line 22: | Line 22: | ||
== Current Formats == | == Current Formats == | ||
These are used for current contributions to the archive. The aim is that they should be as durable and widely playable as possible for the future, whilst also preserving decent picture quality in a reasonable amount of space. | These are used for current contributions to the archive. The aim is that they should be as durable and widely playable as possible for the future, whilst also preserving decent picture quality in a reasonable amount of space. | ||
=== S-VHS === | |||
A higher quality version of VHS, this seems to have made a late arrival at YSTV, when it replaced Umatic in around 2000. It was widely used for tape-tape editing until displaced by computer edit suites around 2003. It continues as a live program capture format, although now secondary to digital capture for repeats and archiving. Some outside broadcasts still rely on S-VHS as the primary recording format, with digital copies being produced from the S-VHS tape. | |||
=== DV === | |||
This is found both as MiniDV format tape cassettes, and as DV data burnt to data DVDs. The latter are usually items from edit sessions that are likely to be needed again for editing in the future, so the quality loss of compressing and decompressing a more compressed format is undesirable. MiniDV is universal for outside filming, although direct capture of DV data to computer has replaced it for most studio work. | |||
=== XviD === | |||
Derived from the MPEG-4 reference code, this is an open source lossy video codec from [http://www.xvid.org/ xvid.org]. It was first used to encode DV video uploaded to the [[Video Server]] to economise on disk space. As this usage increased to include all video played out from the Video Server, it became useful to archive the files even after they were deleted from the system, to avoid time consuming capture from tape. As Premiere Pro will import compressed video files, it is now much more convenient to find clips from the digital archive on data DVDs that from SVHS tapes, so XviD compressed files have become the dominant format for archiving final productions. | |||
