[Grml] Slow access to CD

[T]

Hi

My CD accessing speed is extremely slow. 

For "cdrdao read-cd", which normally takes 5~6min, takes 5 times as long:

real    24m54.889s
user    0m0.004s
sys     0m0.016s

For "vcdxrip", which normally takes same as "cdrdao read-cd", 5~6min,
literely takes forever:

#extract[avseq01.mpg]: 148720/354829 (42%) ^C       

real    83m17.571s
user    0m0.000s
sys     0m0.012s

Everything has been fine in Debian Sarge. What could be wrong? 

PS. I've turned dma on for my CD:

% hdparm -d1 /dev/hdc

/dev/hdc:
 setting using_dma to 1 (on)
 using_dma    =  1 (on)

please help

thanks