[X4U] Can't erase SanDisk

[Rod Duncan]

Might be built into the firmware of the drive. Dunno. I had a similar 
but different problem with a much smaller USB removeable. It was few 
years ago.  It came with a double partition format with the PC 
penchant for floppy disks so got saddled with this separate 1.4Mb 
partition nonsense. It was in addition to the larger partition. (I 
think it was only a 32MB total USB drive - few years ago) While I 
could erase any software, couldn't - try as I might get rid of the 
additional partition and make it as one. Different problem but your 
issue reminded me of my frustration at the time.

Rod

>I have a friend who just purchased a 1gig SanDisk Cruzer micro USB 
>flash drive. He's trying to get rid of all the software that SanDisk 
>puts on it.
>
>He's reformatted it, but there still remains a 28Mb or so "disk 
>volume" (it appears as a seperate volume on the desktop from the 
>usual SanDisk volume) that contains some PC files/programs.
>
>We can't figure out a way using Disk Utility to erase that volume. 
>Doing a Get Info on it indicates it is locked (as is the SanDisk 
>icon as well). All the Disk Utility options are greyed out.
>
>Can anyone help?
>
>Thanks,
>
>David