[Tig] video compression: lossless? (JPEG2000)

Skip Elsheimer avgeeks at gmail.com
Sun Oct 18 15:21:58 BST 2009


I believe the Library of Congress is using SAMMA Systems' flavor of JPEG2000
compression where a bunch of JPEG 2000 images and audio streams are saved in
a MXF wrapper. The LOC is saving with the lossless compression option for
preservation purposes - they are also making access derivative files -
MPEG2, MPEG4, etc.- since most people can't playback a JPEG2000 compressed
file in realtime.
Ted Langdell has been working with SAMMA and might be able to clarify this.

There is so much confusion involving JPEG2000 compression vs MJPEG2000 or
MJ2K or whatever that many archives are just saving their video content as
uncompressed.

Skip Elsheimer
A/V Geeks LLC




More information about the Tig mailing list