<https://forums.sonyinsider.com/topic/20277-rh1-or-rh10m100/>
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"I've been listening to a MZ-N510 for a number of years. About a year ago, I picked up a 5th gen iPod, and kept the MD player around for line-in recording. Recently, both have broken down and are far enough out of warranty (I also cracked the case on my ipod, voiding it.)   SO, I need something to replace my music playback and recording devices. Hi-MD really caught my eye. But I've got a few questions:   -The product numbers are a bit confusing.   What's the difference between the RH1 and M200?  I've heard there's no difference at all, but sonystyle is ambiguous.    What's the difference between the RH10(M100) and M10 (RH910)?   It looks to me like only the display is different--backlit, instead of LCD. Anything else I should know about.   But assuming that these models are similar within their groups, what are the drawbacks and advantages of each one? I'm looking at buying an RH1 or an RH10. The RH1 looks like it has more functionalities, but being as how it replaces my ipod for playback, I don't like the idea of song titles and play modes being stuck on the remote, which might not always be convenient. For this reason, I like the RH10's multiline display for playback and navigation. Which should I choose? \n"
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