Read from SQL Native Compressed Backups
Compare does not read from SQL backups that have used the native compression, although they can read from Redgate Backup files that have been compressed. I think that it should also be able to read from SQL compressed backups, as not all users will have Redgate Backup software.
This would be beneficial to all, because it would create a way of restoring lost data without using a partial restore, to any user that has this Compare software.
Allan Boyd commented
without the ability to compare using a natively compressed backup, the functionality is essentially useless.