CD problems

[Kratt]

I'm having trouble with my CD drive :devious2: I'm trying to watch some AVI files on a CD, it has a low bit rate but still it stutters. What happens is that playback will stop and I will hear the CD spinning up again. Sometimes this would happen every 20 seconds :confused4

now I have no idea how this could be, because I would have expected the CD t spin up in advance and have the data in a buffer. I suspect this is something to do with Sony, as always their hardware never works properly because they try to write their own drivers for everything instead of using the manufacturer once which actually work properly already :shame:

what can I do?

[tandoc]

For starters, what OS are you running..

and then how much ram, and what type of CPU do you have...

the problem is most likely that your cd drive is in PIO mode, which is CPU intensive, you want to switch that mode to UDMA (doesn't matter what mode, but it should be 2), to place the load on ram instead.

Google it if you want, or reply back here.

[niv]

Well, I've never really seen drivers for drives..they just work. :p

I'd suspect that the disc is just really scratched up...much like all of my DVD+Rs...the source of everyone's dismay. :(


It could just be a defective drive, do you still have warranty on it? If you do, go ahead and try to get an RMA and a FedEx #, I have so much bad hardware lying around because I'm lazy ;)

[Kratt]

Windows XP, 512MB of RAM, centrino 1.5G
the drive is part of a Sony notebook CRX950E,and sometimes it plays with fewer pauses even with the same disk
how do I find out the PIO mode, I looked in the device manager under the CD-ROM, but I couldn't see anything

[tandoc]

google for how to set 'dma mode' - it should turn up a few user friendly tutorials...

[Kratt]

I found a page
http://www.helpwithwindows.com/WindowsXP/howto-05.html

apparently by computer was already set up to use DMA if available
and they were running on Ultra DMA 2 and 5.