Any downsides on using an SD card over internal memory?

[geo909]

Hello all,

I am about to invest on a good mp3 player and d2+ is probably on the top of my list. Though I still want to figure out a couple of things before I buy it and thought I'd drop a question or two here:

1) Are there any downsides on using a SD card over the internal memory? Does the player treat those two in a different way? For instance, am I going to be able to browse my music by metadata (by artist, by album, by genre, etc) regardless of the place where the actual files are stored (internal memory or SD card)?

2) Very closely related to my question above: Should I save myself $30 bucks, buy the 8GB model over the 16GB one and use a SD card?

Thank you very much in advance for your time.

Regards