BlindWrite now supports on-the-fly writing of WAV and MP3 files, as well as several CD images formats : ISO, CUE, BWT, WAV, MPG, MP2, MP3.
RAW mode is needed to produce perfect backups of your CDs ! DAO mode is even better. Almost all CDs can be perfectly backuped in DAO. Blindread / Blindwrite is a perfect tool to produce backups in RAW and DAO mode.