the cd-drive in my bs1 had a failure after one year of rather little use. my dealer replaced the cd-drive (not the bs1) for free without any hesitation. now it it running fine again.
my bs3200 is now 3.5 years old and has only problem when recording certain cds to its harddisk. after pulling the mains everything is fine again (and i can record the cd).
no troubles worth to mention with the bc1 and the bs2 (except for an exhausted battery).