Need good disk dump utility

Dwight> Hi Not only should it pad the empty space but it should also Dwight> write the buffer values that may have been read if it was Dwight> just a crc error on the data portion. These are often just Dwight> missing one bit and can be recovered with a little bit of Dwight> work. That's a great idea if the OS drivers do that. Typically they do not; if an error is returned then data is not returned. What you're looking for here is a "give me the bits that came across anyway" feature. Come to think of it, you also need hardware that offers this -- some do, some don't. Analogous example in networking: Ethernet drivers and/or NICs normallly discard bad packets, but some drivers and NICs can be told not to do that and deliver packets even if the CRC is bad. paul