Mpg on Mac "can only see 7min of 45.."
 

Well, this is sort of an answer to the post "mpg video" in this forum, the original thread seemed to be uh, "hijacked" ....

However, I've also had alot of those mpg's, and i searched all over the internet to find a answer or fix to the problem:

The .mpg file was originally divided, i.e made up of smaller movie clips, For example, a 140 Mb .mpg file was ten 14 Mb files. then, someone joined these files on a PC windows system, this works fine on a Pc, unfortunately not on mac. So what you see is only the first 14meg file... (ofcourse, some will work on mac)

There is no solution to this which you can do on a mac (as i know of), however, there is tricks to workaround it (works 85% of the time, hehe), start playing the movie and just before the end, stop playback (often u will see the image switch) and move the "playmarker" to !ALMOST! the beginning...

This way u can see the whole movie if u absolutely want to.

OR : Use windows and convert the movie mpg to divx or mov or even mpg to mpg...

Ooooh how i hope someone will say, there is an easier way...


/Niels

Fixing Mpegs
 

There is an easier way....
Get Rosetta a shareware program - this can resplit the files - then using the same program you can rejoin the file - works perfect.

One that I found was bbDEMUX 1.2.2

It makes the video viewable in whole, but unfortunately it spits it into two files: an audio file and a video file. You have to run them both at the same time and usually the audio is way off and the audio becomes "mute". You have to click on the progress bar to make it audible again.

I think I'll check into this Rosetta and see what it offers.

Thanks.

This may be of some help, it's called "correct PC mpgs 0.2":

http://www.versiontracker.com/morein...d=14947&db=mac

I think I've tried it without luck but it may be worth a shot.

Hope this helps....

Rosetta will indeed fix mpg's that were split for upload to newsgroups and reassembled in a way the Mac can't read. However, at this point, QT 6 hangs at the seams, whereas QT 5 or VideoLan plays it perfectly.

Demuxing the mpg is a last resort when Rosetta doesn't work, i.e., if it starts spitting out chunks of wildly different sizes. BBDemux or mpgtx then work well to split the two tracks. However, since QT 5/6 cannot do anything with mpg1 streams but play them, you have to do a few tricks to get the two back together.

The easiest is to convert the m1a/m2a file to an mpg. Give the file an mp3 suffix and iTunes will be able to convert it just as you do a CD track. Then open the video file, then the audio in QT Pro. Scale-paste the audio into the video and save as self-contained movie. If the synch is off, then use QTMutator to adjust.

Another solution without converting the audio: After demuxing open the video in QT Pro 5/6 and the audio in QT Pro 4. Copy audio, then paste into video. Save as self-contained movie. QT 4 had limited editing abilities with mpg1 which were later dropped.

On 9.x you can have both 4 and 5/6 on your computer by deinstalling 5/6, installing 4, renaming the 4 Player (QuickyTime Player or something cute), then installing 5/6 again.

Note: mpgtx can also do rough edits on most mpg1's, but not if they have been placed in a QT "container" by saving them in QT.

All apps mentioned here are freeware (Rosetta shareware) available at versiontracker.com. mpgtx at http://www.biermann.org/philipp/mpegcut/

Thanks for posting! That makes sense. I've noticed this with quite a few mpg's myself, but was never sure what was going on. So it seems that the way they were "hinted" for streaming is why QT can't handle them? Well, wait, no I think I get what you're saying. Well, the result anyway, I'm not clear on how they get that way in the first place.

Yes, I just realized that the other day, after I paid my $30 for QT pro. <sigh> I could've sworn I could do drag and drop editing of .mpg 1's before I upgraded to 6. Looks like I may be hacking together an OS X native version of 5.0 or using 5.0 or 4.0 in Classic.

Thanks for the info on Rosetta guys, I don't think I've ever heard of that one.

If all you want to do is string mpg1's together, use mpgtx. The version for X has more features than for 9.x, but I think there are still a few bugs. Rosetta can do this, too. But so far, QT 6 even has trouble with series of mpg1's that have been "edited" in QT 4/5. The difference is that in 4/5, they remain separate streams which you can later -- theoretically -- extract, while mpgtx and Rosetta merge the streams.