I don't know if the developer will see this.  The "official" Devede
forum site at Google Groups just has a bunch of spam, so I don't know
where else to post.

I had this problem with x264-encoded files as well.  Devede told me the
resulting ISO would nearly fill a DVD, but in fact it only was 1.5 GB in
size.

I'm wondering whether it might be possible to use mencoder to determine
the bitrate of each source file and use that to calculate the expected
size of the output file.

Unfortunately, some containers don't include the bitrates; mplayer
routinely reports these files as having a bit rate of zero.  However,;
they can be determined using mencoder like this:

mencoder file.mkv -ovc copy -nosound -o /dev/null -endpos 120

This command "plays" the first 120 seconds of the file into /dev/null
then writes a summary like this:

Video stream: 1875.306 kbit/s  (234413 B/s)  size: 28139352 bytes
120.042 secs  2881 frames

Could this approach improve the size estimation process?

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https://bugs.launchpad.net/bugs/349011

Title:
  DeVeDe bitrate calculation for DVD iso is incorrect

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