DAT 72 (CDM72) ? High Capacity - Up to 36 GB native and 72GB* compressed ? Minimal Error Rate, Higher Efficiency - Although DAT and DDS cartridges have error correction, avoiding errors in the first place is the best solution. An extremely smooth base film and super-calendaring techniques give the magnetic layer a mirror finish to reduce the spacing loss that causes error. Combined with the tapes high output (+1.0dB), this results in an extremely low error rate. ? MRS (Media Recognition System) - All cartridges have MRS to inform the drive that this medium is certified for the DAT/DDS system.