MPEG-1 playback problems

Hi all,
I've imported an MPEG-1 file of 70 minutes with the
DirectMedia Xtra (on PC) and Quicktime (for MAC), but I have a few
playback problems:
On PC it works quite well, only the slider won't go beyond a
certain point in time (about 50 minutes), fom there it always snaps
back from where you dragged it.
The sprite script for PC :
on exitframe me
if sprite(me.spritenum).movietime >=
member(sprite(me.spritenum).member).duration -1 then
go to frame 5
end if
end
On the Mac the MPEG plays very jerky, turning of the "sync to
audio" helps but then there's no audio off course. The script is
the same, except the first lines to control the Quicktime playback
on enterframe me
sprite(me.spritenum).movierate=1
end
on exitframe me
if sprite(me.spritenum).movietime >=
member(sprite(me.spritenum).member).duration -1 then
go to frame 5
end if
end
I've read that the "member.duration" script can cause a few
problems, does anyone has an alternative I can try ?
Thanks in advance,
Gerrit

Hi Gerrit,
First, any reason you're not using the MPEG Advanced Xtra
insttead of DirectMeda
Xtra? This Xtra is the followup to DirectMedia and is better
in many ways, one
being that it is cross platform so you can use the same setup
for mac and PC.
I have had jerky playback on the Mac and the issue was was
bad formatting of teh
MPEG file itself. You can read more on this at:
http://xtras.tabuleiro.com/support/technotes/mpeg_advance/ma009.htm
Best solution was to use TMPGEnc to reformat the MPEG files.
This program can be
downladed for free at:
http://www.tmpgenc.net/
It may fix the timing issue as well.
regards
Dean
Director Lecturer / Consultant
http://www.fbe.unsw.edu.au/learning/director/
http://www.multimediacreative.com.au

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    I believe this issue occurs only between songs that iTunes has converted to a lower bitrate for you during transfer to your iOS device and songs that it has not done this for. Take this Between the Buried and Me album, for instance. I have marked all of the transitions that should have been gapless but probably aren't in red. I know for sure that most of these marked transitions are indeed broken and that the most of the transitions not marked in red work flawlessly... I honestly can't remember whether or not some of these transitions were gapless or not, but the many transitions I do remember working or not working match up exactly with whether or not the songs on either side of the transition were also on other sides of the 256kbps threshold, the threshold at which I enabled iTunes to convert tracks to 256kbps AAC.
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