[fdwlaw]

Occasionally I use Disk Warrior 4.1 (monthly) to check my drives for errors. It seems like every-time I check my external HD (the one I clone to) has errors reported by DW, when the internal HD does not. I can repair the errors with DW, however if I clone again right afterwards and run DW I get errors that again I can repair with DW.

Is that normal?

Thank you,
Dazed and Confused

I've used SD now for about 3 1/2 years.

Here is the external drive information:

Disk Description : Hitachi HTS722020K9SA00 Media
Total Capacity : 186.3 GB (200,049,647,616 Bytes)
Connection Bus : USB
Write Status : Read/Write
Connection Type : External
S.M.A.R.T. Status : Not Supported
USB Serial Number : 070729D0410D
Partition Map Scheme : GUID Partition Table