Actually, it's not a waste; you'll get another 10% or so file size reduction with RAWs and JPEGs, and it doesn't make file recovery any more difficult. The compression is part of the OS, and is done on individual disk clusters, so the decompression is done before the data is sent to the disk recovery program and therefore file recovery is no more difficult than when working with uncompressed data. I've been using compressed NTFS personally and professionally for over 8 years, and its only downside is slightly higher CPU utilization while writing to the disk.