Dropped Frames @ 26 Minutes and 45 Seconds everytime

[AstralWarrior]

Using VDUB
ATI AIW Radeon 7500
VfW To WDM Drivers
512x384 Capture @ 29.97 fps
Soundblaster Live Value / Line In from AIW card Capture @ 44.1 Stereo

I lose about 20-30 frames the first 26 minutes which is fine.

My problem begins at Approx. 26 mins and 30-45 seconds. I lose around 100 frames in 10-15 seconds then it repeats with about 20-30 more 20-30 seconds later. After that it is fine ( goes back to 1 frame drop for every 2000-3000 captured)

What is going on?

1400 Ghz
384 ram
Windows 98

[Nelson37]

Are you capturing to a second HD or your Boot HD?
Is this time perhaps where AVI's are segmented?
Turn off Screen savers, all backround apps.
Try another compression codec and/or resolution to change file size significantly and check if problem occurs at same time interval.

[AstralWarrior]

Yes multiple drives, 4 to be exact

It happens at all sizes .. I did 352x240 and the same thing happens ..

Each drive is at a different speed 7200 and 5400 also I use an ATA100 is there a cache involved with those?

[kinneera]

Is it the same thing you are trying capture every time, or does it happen with any capture?

If it is the same tape, it may just mean several sync signals have been lost in that section of the tape.

[homerpez]

This was maddening to me as well... it's one of those inexplicable MMC problems...

I've since changed over to Virtualdub and Huffy AVI capping at 480x480 (so I can re-encode to whatever format afterwards). Capturing with MMC to any format will drop frames for everybody. In my best-case scenario, MMC did what you described, only mine dropped ZERO frames, then after 20-30 minutes would drop LOTS of frames. And this was back in version 7.2 or something (when frame drops corrupted the entire file)!

I don't think 7.6 is any better at this... still unpredictable (though I think you can drop frames now, and it won't completely corrupt the entire capture file).

You probably won't be sorry if you go to AVI capping instead. Then it only drops frames when it truly NEEDS to.

[AstralWarrior]

No It happens with every capture.

I can now say this though, I have capped about 11 episodes and it is starting to happen in the 25 minute range.. I am thinking it made be a bad sector on the hard drive. It seems to me that since I am putting compressed avi's on the drive it is getting to the bad spot earlier with each new cap.

But then again I may be nuts.

[kinneera]

Well, if that's what you suspect, you should run Scandisk or some type of disk checking tool. Once a bad sector is located, it will be automatically tagged so that it won't attempt to write to it in the future.

[homerpez]

No It happens with every capture.

I can now say this though, I have capped about 11 episodes and it is starting to happen in the 25 minute range.. I am thinking it made be a bad sector on the hard drive. It seems to me that since I am putting compressed avi's on the drive it is getting to the bad spot earlier with each new cap.

But then again I may be nuts.

No, I meant it like is sounds... when I had mine set up for "zero-frame-drop" capture, I still had this exact same phenomena... somewhere after 25 minutes or so, it starts to drop around 2% of frames out of nowhere...

It could, theoretically, be a bad sector, but I'm betting "no". I had this phenomena happen with two separate hard drives. It's merely bad programming by ATI.

[Gabriel_Brazil]

Dear friends,

I´m using AVI_IO and after 45 minutes of capturing (320x240) it started dropping frames likie crazy. I don´t know why ...
With VDub the system just freezes after different times on different movies.
I bought my DC-10 Plus 2 months ago and I can´t capt movies until now.