Dmitry Morozovsky wrote:
What if you copy that big file from CD to HD twice (possibly with
unmounting/remounting in the middle) and check MD5s there?
I tried a few times and got no error.
Testing your memory with memtest86.com's test would also be helpful toCould get memtest86 to run for some reasons, but I tried memtest multiple times and got no error.
eliminate RAM issues.
Yar Tikhiy wrote:
Once I had an old noname PC (iP200 in an i430VX motherboard), and
I installed a DVD+RW drive into it. Data read from a CD or DVD was
damaged with high probability. With hw.ata.atapi_dma set to zero,
the probability of data corruption was lower, but still noticable.
That's while there were no corruption on burning in DMA or PIO mode.
At least I'm not alone !
Are there CDs in your collection that produce no errors?Yes, but I cannot really tell if it's by chance or they really do not produce errors.
Even a badly scratched CD won't produce damaged data unless readThe CDs read well in other computers. FWIW, my ATA controler is an Intel ICH5 :
in a brain-dead drive. If your drives work OK with a different ATA
controller, then it's probably your present ATA controller to blame.
atapci0: <Intel ICH5 ATA100 controller> port 0x24c0-0x24cf,0x280c-0x280f,0x24f0-0x24f7,0x2808-0x280b,0x24e8-0x24ef irq 10 at device 31.1 on pci0
ata0: at 0x1f0 irq 14 on atapci0
ata1: at 0x170 irq 15 on atapci0
atapci1: <Intel ICH5 SATA150 controller> port 0x24d0-0x24df,0x2814-0x2817,0x2800-0x2807,0x2810-0x2813,0x24f8-0x24ff irq 10 at device 31.2 on pci0
ata2: at 0x24f8 on atapci1
ata3: at 0x2800 on atapci1
ad0: 38166MB <WDC WD400EB-11CPF0> [77545/16/63] at ata0-master UDMA100
acd0: DVD-R <PLEXTOR DVDR PX-712A> at ata1-master UDMA33
I think I will live with this bug until I change hardware.
Many thanks !
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