Provide auto-validate-after-copy (sf.net)

I just came across CopyHandler after having been a TeraCopy user for quite some time. CopyHandler seems to have two significant advantages over TeraCopy: a free version that one can use even in a commercial setting, and support (your forum clearly shows support being provided in contrast to TeraCopy's forum). There is one important feature that TeraCopy provides though that I do not see in CopyHandler, but I am posting this in the hope that you will tell me you do also. The feature is auto-validate-after-copy. TeraCopy can (optionally) generate checksums for source and destination and flag the result if different. It takes longer to write-then-read-back instead of just a write but I do not mind at all: I use it ALL the time--it provides tremendous peace of mind.

(migrated from https://sourceforge.net/p/copyhandler/feature-requests/19/).