Is there an App, or a Finder setting, to verify the integrity of copied data in individual files?
My immediate concern is to check the integrity of EyeTV exports moved from one Mac to another, but since discovering a corrupt file, I now have concerns about all files I copy, including backups via Time Machine and SuperDuper. My EyeTV source file is on the main iMac (late 2012 - 27inch) and destination is a Firewire external hard drive attached to a second "media" iMac (late 2009 - 21.5 inch). Both iMacs have Mountain Lion OS. To complicate the issue, the file is copied twice to get it to its destination. It is not always obvious that the copied file is corrupt - it can be some time after the original has been deleted! My file transfer method: Ethernet does not work on the media Mac, so I use AirDrop. Typical example: I record an EyeTV program and export the edited clip to desktop on the main iMac. I then use AirDrop to copy it to the media Mac downloads folder (the default?). Next, the file is copied to a Firewire external drive and the link is finally Option-Copied to iTunes. I would normally delete the desktop file and the EyeTV original as soon as possible. (Then I watch the show via Apple TV!) I think AirDrop uses Mac-to-Mac WiFi and bypasses the Time Capsule. If so, this may cut out one potential problem with repeating wireless data. A secondary question: could I use AirDrop to copy the file in one step directly to the Firewire drive (and still apply a data integrity test)? Regards, Alan Alan Smith Late 2012 iMac 27" Intel Quad Core i5 3.2Ghz 8GB RAM - OSX 10.8.3 Late 2009 iMac 21.5" Intel Core 2 Duo 3.06GHz 12G RAM - OSX 10.8.3 iPad2; ATV2; iPhone5
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