You are right, I am a teacher, and every semester I collected all of the relevent data associated with the classes I taught (Grade Sheets, Syllabus, Exams) on a minidisc. I mostly carried the 600D unit around with me because I did not want to scratch up my newer, nicer RH10. Well, as it turns out, the 600D is still going strong, and the RH10 is flaking out. I suppose I could still use the RH10 but everytime I unwrapped a new minidisc, I would have to make the first initial recording using the 600D. After that, the RH10 reads and writes files just fine. Pretty strange huh? At this point though, I simply cannot trust minidisc technology for anything but music I have ripped from my CDs. This particular line of Sony products cannot be considered "safe" enough to store my data on. Bye-bye minidisc (for data anyway), and maybe bye-bye Sony altogether. Sony's products used to be the gold standard for portable audio, in quality and in features. No more though. Nobutoshi Kihara has left Sony, and so has product quality.