taka po vuprosa imam dvd nek i si varvi na mpleara no tsikli
 na portsii (ot vreme na vreme ) nasicha uzh e na SCSI emulation
 ta vuprosa mi e kak da go napravia da ne nasicha neshto s hdparm
 ??? daite ideia ot mpleara vsichko probvah -cache , -nocache
se sushtata rabota help malko :)
Linux Slackware 10.0 sum.
 CPU Celeron 700Mhz RAM 256Mb GeForceFX5200 (mislia che
harduera stava za DVD :))

Kakuv rezultat ti dava "hdparm -iv /dev/hdX" ?

e tva dava 

/dev/hdd:
 HDIO_GET_MULTCOUNT failed: Invalid argument
 IO_support   =  0 (default 16-bit)
 unmaskirq    =  0 (off)
 using_dma    =  0 (off)
 keepsettings =  0 (off)
 readonly     =  0 (off)
 BLKRAGET failed: Invalid argument
 HDIO_GETGEO failed: Invalid argument

 Model=_NEC DV-5800A, FwRev=1.92, SerialNo=
 Config={ Removeable DTR<=5Mbs DTR>10Mbs nonMagnetic }
 RawCHS=0/0/0, TrkSize=0, SectSize=0, ECCbytes=0
 BuffType=unknown, BuffSize=0kB, MaxMultSect=0
 (maybe): CurCHS=0/0/0, CurSects=0, LBA=yes, LBAsects=0
  IORDY=yes, tPIO={min:120,w/IORDY:120},
tDMA={min:120,rec:120}
 PIO modes:  pio0 pio1 pio2 pio3 pio4
 DMA modes:  sdma0 sdma1 sdma2 mdma0 mdma1 mdma2
 UDMA modes: udma0 udma1 *udma2
 AdvancedPM=no

Probvai "hdparm -d1 -c3 -u1 /dev/hdd"

oki

ah stana suepr :)