Here is the full tracklist for the standard edition of All for You , courtesy of :
Open the FLAC in or Audacity . Look at the frequency spectrum. A true FLAC from a CD (44.1kHz) will have frequencies reaching up to 22.05kHz. An MP3 transcoded to FLAC will have a sharp cutoff at 16kHz or 19kHz. The RLG work is known for a "full shelf" – all frequencies present.
If you are looking to find this specific release, you might explore high-end audio forums or dedicated lossles music communities that focus on preserving the quality of iconic albums.