I use MP3's imported to 320kb quality. Lately my Desire is stuttering during playback, the song will stop for anything from a fraction of a second to 2-3 seconds, then carry on. I've reformatted my card and put everything back on but it still does it. Has anyone else encountered this? I'm sure it didn't do it originally, but lately it's happening a lot. I've read about the headphone socket occassional problem, but this stuttering occurs even if I use the phone speaker. Do I need a faster card if my MP3's are at this quality? I'd be surprised, because most MP3 songs available to buy are now offered at this quality.