- Memory based - no moving parts. Actually I'd prefer it has no built-in memory but a SD (secure digital) slot.
- The DAC quality is of utmost importance. Provided headphones could be of lowest quality. I'll use them with my own headphones.
- Firmware upgradeable. Vorbis/AAC future support possibility. Should support native tags and VBR.
- I want it to be as tiny and light as possible. The player should be of aluminum/steel/titanium construction (not plastic). I'd prefer it to have about an AAA size battery for size considerations. It could have built-in battery but AAA is preferred due to its availability.
- The file access interface should be well designed. The display does not have to be too fancy but high pixel count and Organic Electro Luminescence Display (OLED) is preferred.
- Reasonable actual file transfer speed (3Mbps).
- Should be accessed as a USB drive without any additional software.
- Absolutely no DRM/music protection built in. I should be able to download the music back to my computer if I want to.
- FM & Voice recording capability would be nice to have but not crucial.
Mpio FY200: is very tiny and has very nice design. But the users seem to have a lot of trouble with the firmware. It is not expandable either.
Sony NW-MS70D: This model is almost perfect, perfect engineering and design and sound quality. However only supports ATRAC and forces you to use Sony Jukebox software which renders this amazing player less than desirable.
Daisy Multimedia Diva Gem: This player has AAC support, SD expansion and has 40mW per channel output. However as far as construction quality goes it does not look very appealing.




