On 09/27/10 7:49 PM, Tom Bishop wrote: > How do I figure out if it's a 4k sector drive, I've read about that > but never looked into it...is there any way to tell, and when you mean > start my partition, I only have one large partition, since this is > just for my data files....so you mean I should start on 2048 and go up > from there??? Thanks in advance...going to do some more reading... a lot of new drives are using 4K byte sectors internally for various technical reasons. they pretend they have 512 byte sectors externally for compatibility by default, the first few blocks of the disk is the MBR, then the first partition starts right after that. if you dont do anything special about this, odds are, 'right after that' is not on a 4K boundary. you need to 'trim' the start position of the each partition so its on a 4K boundary.