Sending this to the whole list because I think it rates some discussion.. That mpeg is an elemental stream, video only. If there is a higher quality original source somewhere, I'd be happy to reencode into different formats... video codecs have come a long way in the last 10 years. There was a DVD released a few years back by NASA, but it was a Fox release.. undoubtably tied up in copyright somewhere. Commentary, new presentation, and at the least a collection copyright. 3 discs, 10 hours of video, or some such. As to formats: At the minimum, I would suggest something similar to archive.org's system.. a high quality archival version (Of an open standard.. MPEG-2 will probably be around for a while, even with the patents) and then smaller versions (I would suggest MPEG-1, MPEG-4, and QT/Sorenson.. although the last is debatable.) MPEG-1 can be played well on a P-90 or so, and is widely available both on Windows and other operating systems. If you want to go lower, Indeo or Cinepack will work even on 486s.. but the codecs to support them are getting difficult to find. R C On 5/22/05, Jim Tinsley <jtinsley@pobox.com> wrote:
Etext #116, Video of the first moon landing, needs attention, and I'm no video format expert.
There are three files:
landiavi.zip landimpg.zip landiqt.zip
all in etext94/.
The AVI is perfect. The MPG has perfect picture, but no sound. Given the disparity in file sizes, I don't think this was corruption. The QT/MOV won't play for me at all. Yes, I may not have the latest QT, but this file is from 1994!! :-)
The obvious solution is to make MPG and QT files from the AVI.
A complication that, thankfully, we don't need to deal with is that the landiqt.zip on archive.org is corrupt; same file size but some bytes different, leading to a corrupt zip. Not a problem, because we can work from the file on ibiblio, and just replace the archive version.
If someone knowledgeable in this area could contact me off-list, and help me towards getting a good solution, I'd appreciate it!
jim
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