Hi everyone, Semi-newbie here. I've been super happy with my old sharp MD-MT821H for 7yrs, but the rechargeable battery isn't holding its power anymore. Time to upgrade!! I've been doing a bit of homework (I want the best), but regarding the MZ-RH910 and the MZ-RH1, I seem to be a little confused. I've downloaded product manuals for each from Sony W/S, and done comparisons. They both seem to do the same things, but the only difference that I can see is that they want to charge me $100 extra for the RH1. OK, the disign is different, but I think the 5-line display of the RH910 is better. (Also the RH1 doesn't have an add-on AA battery) Anyone got any comments they'd like to share? I'll be using the machine for playing music when I'm on the go, and recording things like lectures / classes for studying later. Also, Will I be able to use the Bang & Olufson in-ear earphones with it? Doesn't Sony use a micro-headphone jack? (I paid €110 for my B&O's, and they sound QUALITY) Thanks