|Originally posted by BorisK
I took the advice of doing a complete reinstall of XP pro. I installed Elcard, womble and copied over a single medium quality 2 hr ppv show. When I first run the GOP fixer in womble it finds 300k+ errors. When I go and replay the GOP fixed show (nothing else) the show is already out of sysc (raw untouched file was perfect). So, I went in and made my cuts.... no good.
Now I just cut the video, The sysc was better than before but still annoying.
When you say "Copied over" what do you mean? One problem I've not mentioned much (because it's extremely rare) is that you CAN have problems with sync (big time) when just "moving" an mpeg from one disc on one system to another. I've done this myself.
You should off load the mpeg from the ReplayTV to the system you will be editing it on. Don't move it around except to possibly re-direct an editor's output to another disc or folder. But always in the same environment.
In my test case a one hour show was off loaded to computer A. Then it was copied to computer "B" and the original was deleted. On computer B the mpeg was un-usuable. Huge audio/video sync problems. (and in fact this was the only time I've EVER had a sync problem ... but read on)
I saved it for later diagnosing. A few weeks later I copied it BACK to the system from where I originally had it off-loaded so I could look at it with all the utilities I had there. (computer A)
And the mpeg was now in PERFECT sync. Just to test it again, I erased the mpeg copy on computer B. Then copied the mpeg from A back to B. Playing on B again had huge problems. So I took the drive on A where it was originally saved directly from the RPTV, and reformatted the drive. (my Raid array) Then copied the "copy" from B (where it was out of sync) back to the virgin A drive. And it was again in PERFECT sync.
I never tried duplicating the problem but you've reminded me about it and maybe I will soon. The point is, just copying the mpeg from one computer system to another caused a huge sync problem. But more puzzling was that moving it BACK to it's original source made the mpeg play normal again.
Before somone says, "Maybe computer B has the problem the rest of us have", let me say this. I have since off loaded RPTV mpegs to that "B" computer and never had a problem. I'll have to do more investigating.
Here's another snippet of my "estimation" of the GOP fixer thing.
1. GOP fixer fixes some things intrinsic to the mpeg. Really has NO bearing on quality or playback capability. It just corrects that bogus information that really isn't needed to play back properly at all. Normally you don't need to do ONE single thing to a replaytv Mpeg just to view it.
2. However, many DVD authoring programs and editors USE that header information. So (IMHO) even though the mpeg IS fine those programs choke on it because they EXPECT the header (and other intrinsic elements) to BE A CORRECT and actual reporting of what the mpeg really is.
3. Most times, if you have an editor or authoring software where you can TURN OFF compliancy requirements, you will be able to use the ReplayTV mpegs right out of the box so to speak. I believe someone once posted here in the past he was using a DVD authoring package that allowed him to "ignore" the specs requirment and allow him to author the DVD with the supposedly bogus ReplayTV mpegs without it having to re-encode it. And it worked fine ... the DVD he made worked perfectly.
Go figure .. it's quite confusing no? <grin> An aside note. Others here have said that the Elecard codec caused them problems. No problem here with it. BUT since this problem seems to be very much "system" related, it stands to reason that one guy may be able to use Elecard and other can not. (more confusion)
My offer still stands to try any mpeg anyone wants to send to me. At least that way, before you spend months trying to fix it, I can at least tell you if a problem exists with the mpeg or not.
If anyone has an FTP server and is willing to let us use it so guys can upload say 50 to 100 mb of bogus source and I can download it for testing, I'd be willing to spend the time to examine those mpegs. I just have no way to easily get them at the present time.