Error: "Decrypted data size does not match the compressed datasize" when restoring database from a backup file that has been created by LiteSpeed and a copy has been mirrorred to a share on a different folder.
Product defect. The error message is caused by an incorrect password being passed in. The error message itself is not exactly correct and was changed in 6.0 to read "The backup file is encrypted, and you have not supplied the correct decryption key for this file. Note: The decryption key is the same as the one used to create the backup file."
STATUS: Fixed in version 6.x of LiteSpeed.