DDR video playback freezes

[prod1200]

OK so 1 DDR, 1 video, starts good then a second later the video freezes. Then 3 seconds later video resumes until finish. This doesn't happen all the time just when I don't want it to like during a live service. The video is even rendered AVI speededit HQ. No other running programs, Windows is set at best performance, DDR is running at High resource usage and the Hard drives are also not indexed. Can anyone help?

Specs:
1-150GB SATA hard drive
1-700GB SATA hard drive
Windows 7 64bit
2-Xeon 2.33GHz
4GB RAM

 

[prod1200]

DDR video playback freezes 2

Also I have a EVGA GeForce 9500GT 1GB video card for projector display. The hard drives are Seagates.
Can anyone please help with this situation!!!

 

[SBowie]

Does it make any difference which drive the clip that freezes is on?

 

[prod1200]

smaller drive doesn't freeze

Well funny thing, I tried the using the smaller drive which has the os and programs and it hasn't froze yet and plays fine. (?) If that's the case then what would cause the bigger drive to freeze? The bigger drive just has the media.

 

[SBowie]

Do you, by any chance, have indexing turned on for the problem drive?

 

[prod1200]

No, indexed is turned off on the problem drive. It was originally on when freezing occured. Problem persist when indexed was turned off.

 

[SBowie]

you might want to run comparative speed tests for the two drives (since one plays back seamlessly and the other won't).