Extended Attribute to pull Final Cut Pro 7 Serial

Being that the file is encrypted, what you could do is an MD5 hash of that file. You'd first need to have a test machine where you install FCP, serialize it, and then take the MD5 hash. Since you'd then have a correlation of MD5 hash to serial, you could make an extension attribute for it.

Follow?

Thanks Jared I follow but how would I capture the checksum?

Me, I'd case statement it as you're looking for particular patterns.

#!/bin/sh
checksum=`md5 <yourfilenname>`
case $checksum in
   <yourFirstPossibleChecksum>)
          <result>"Serial number 1"</result>
          ;;
   <yourSecondPossibleChecksum>)
          <result>"Serial number 2"</result>
          ;;
   *)
          <result>"Didn't find an expected serial number"</result>
esac

This is totally back of napkin and I haven't tested a single character. Test it, test it, test it.