On Fri, 2003-02-07 at 16:15, Jeff Jackowski wrote: > For LP mode, the tape is run slower, but the data format is the same. The > only degradation will be an increased error rate, which still won't happen > often, but it will happen maybe 2 to 5 times per tape. The rest of the > time it'll look the same as SP mode. Just have that playback problem to > work around.
Actually, Jeff, please look at the URL I posted previously (in Mozilla, because Konqueror and Safari seem to give a 404 on it). LP mode for miniDV does *not* run slower, but it does adjust the width of the tracks from 10 microns to about 6 microns. If two different miniDV players aren't perfectly aligned, then there can be problems. See also http://www.videouniversity.com/dvformat.htm about a quarter way down where it says: "The consumer-oriented DV uses 10 micron tracks in SP recording mode. Newer camcorders offer an LP mode to increase recording times, but the 6.7 micron tracks make tape interchange problematic on DV machines, and prevents LP tapes from being played in DVCAM or DVCPRO VTRs. Sony's DVCAM professional format increases the track pitch to 15 microns (at the loss of recording time) to improve tape interchange and increase the robustness and reliability of insert editing. Panasonic's DVCPRO increases track pitch and width to 18 microns, and uses a metal particle tape for better durability. DVCPRO also adds a longitudinal analog audio cue track and a control track to improve editing performance and user-friendliness in linear editing operations. " Cheers, Tanner -- Tanner Lovelace | lovelace(at)wayfarer.org | http://wtl.wayfarer.org/ --*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*-- GPG Fingerprint = A66C 8660 924F 5F8C 71DA BDD0 CE09 4F8E DE76 39D4 GPG Key can be found at http://wtl.wayfarer.org/lovelace.gpg.asc --*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*-- "A one question geek test. If you think it's funny, you're a geek. Seen on a California license plate on a VW Beetle: 'Feature'" - Joshua D. Wachs
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