Suddenly slow to rip

[The Zulu]

Hi. I've been ripping movies fine for the longest time now. I have a Pioneer DVD-ROM and a Sony DRU-500A. I never use the Sony to rip, as the Pioneer handled that duty much more effectively, ripping discs much faster. Recently though, after trying to backup to my HDD, I noticed ripping speeds consistent at 1.4X. I'm not sure what happened here.

The only change I've made at all was moving the PC from my home to my dorm room. May I have jarred something? The drives work perfectly and nothing seems loose.

I notice when ripping that the CPU is being used up completely by DVD Decrypter. I tried using Smart Ripper, but I got the same results. I checked my IDE cables and made sure DMA mode was set on the IDE channels that the drive is set on. I mean, I have no idea what could have happened suddenly to give me this weird result. I've tried old movies that ripped at normal (fast) speeds and these still read at 1.4X. So, I'm at a loss. Any help?

If something got bumped, what could it be?

[The Zulu]

Actually, now that I think about it, I did rip a DVD after the move and I had no problems with that disc. So, the problem may not even be accidental bumping or whatever since everything was fine until this afternoon.

[janetz]

I am also having the same problem. I just installed the latest DVD decrypter and my speeds went from 10X to a steady 1.6X. I cant figure out why either

[janetz]

maybe this will help you.
The drive I am ripping from is slave on channel 1
I went into device manager to the IDE ATA ATPI into channel one.
0-the master was set to dma but 1-the slave was set to pio. That was my problem. Once I changed that to dma and rebooted my speeds are all good again.

[The Zulu]

The OS was being a pain. Windows XP seems to like putting DVD-ROMs into PIO mode without warning and then not redetecting them when you set DMA Mode If Available on the IDE settings. The only way to get around it is by hacking the registry.

You delete the

MasterIdDataChecksum
SlaveIdDataChecksum

in:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\ Class\{4D36E96A-E325-11CE-BFC1-08002BE10318}\000x

The last digits will be 0000, 0001, 0002, pertaining to IDE channels. My DVD-ROM was set to master, so I deleted the MasterIdDataChecksum entry and rebooted. The channel reset itself to DMA Ultra Mode 2.