No harm in just testing. I might wait a bit longer to see if it happens again - I just hate going through the trouble to find nothing. If you do end up hooking it up to a computer you might take a truncated WinMFS backup to restore in the event of a complete drive bork. I'd also recommend transferring whatever content off to the computer (TiVo to Go, kmttg) prior to the operation so you don't lose anything should that bork occur. I always do this prior to pulling a drive - just in case.