The Crucial M4 512GB SSD are only supported for firmware release 0009 which is an older version that what you can purchase now. Consult the threads here on SSDs as well as BMD's Support webpages.
Am using Crucial M4 SSD 512 Go for a few month now and had no trouble at all recording PRO_RES into 3 Shuttles. My firmware is 000F. Haven't tested Uncompressed.