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Old 06 December 2010, 22:38   #11
Toni Wilen
WinUAE developer
Join Date: Aug 2001
Location: Hämeenlinna/Finland
Age: 42
Posts: 20,473
IOCTL_DISK_GET_LENGTH_INFO failed with error code 21. 
IOCTL_DISK_GET_LENGTH_INFO not supported, detected disk size may not be correct. 
BPS=512 Cyls=0 TPC=0 SPT=0 MediaType=12 
device size 0 (0x0) bytes 
IOCTL_DISK_GET_DRIVE_LAYOUT failed with error code 21.
I guess it is this one. I have seen similar results when very old drive was connected via USB adapter. It is detected but any access attempt only returns errors. I think USB adapters require higher ATA level than "ancient". (maybe even UDMA?)
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