I am very impressed with my N710 (SP Mode). But my main gripe is the space limitation on normal MD Blanks. Barely 2 CDs can fit in. Coming from HDD based DAP, I find this to be a bit annoying but the SQ alone is worth it. So I have decided to migrate to Hi-MD and basically RH-1 comes first on the list. Is it worth it? SQ wise will Hi-SP on RH-1 will be superior than N710? And how many CDs can I fit in to a Hi-MD blank? Hi-SP mode. My Background: I am a regular at Head-Fi.org and my recent DAP rig was the venerable Red Wine Audio iMod 80GB + XIN SuperMicro-IV + Etymotic ER-4S. I sold that rig to finance my photography hobby. IMO, RWA iMod + Good External amp + Lossless is about the very best one can get from a battery operated portable rig. I could not bear to listen to most DAPs because SQ is medicore at best. RWA iMod is an exception. Thanks in advance!!!!