I need some advice on buying one of these for recording lectures. I had an epiphany that I could use one of these for my daily, two-hour bus commute! So with that in mind, I did a little research, and so far I'm kind of disappointed. Sony seems to have an exclusive monopoly, with by far the most models and media types. However, besides the fact that I hate Sony, they are greedy jerks. What this means is me being forced to buy lots of proprietary MiniDiscs or flash sticks. A few models take Memory Stick PRO Duo, which is good. They also have the best looking devices (grr). The iPod isn't really an option for me, since my Mini is gone and couldn't record anyway. And then there's the question of media: flash, cassette, microcassette, MiniDisc. I've never used a MiniDisc, and what the heck is a microcassette? What are the advantages to each? My needs are: reliability, function, sound quality, looks. Price isn't really a concern; I want to use this for a long time (grad school). I'm very hesitant about giving any money to Sony, although MiniDisc looks like it might be cool. Transferring to my Mac is a minor plus. THANKS GUYS!