A friend have the BTC 5232IA (with built-in-cardreader). He said that the writing quality of this writer is bad, only few brands will be burned good, the most have many errors.
The CD-RW-burn-quality was also not good, no chnace against LG or Optorite-drives
Further there exist no FW-update for that writer
Benq DW 1640, LG GH-20N, Pioneer BDR-208
Crucial M4, Sandisk SSD, Plextor M5S, Sandisk Ultra Plus, OCZ Petrol 256GB