I bought an RCA 2000 (512 Mg) which has an expansion slot for SD cards, I purchased a 1.0 Gb card and it's just great. very simple to use, ran the Dallas Marathon with it no problems.
RCA Lyra line has plenty of straight foward no nonsense players that are small with arm bands ideal for running. The only thing I don't like is you can not play songs randomly only in sequence, so every so often I arrange by file size, artist, genre etc.. to change the routine.
Happy running.
Roque
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