From what I researched I got the maximum memory card my pearl can read I got a *GB microSDHC and it read it fine straight out or the package now I can start loading more ringtones and mp3s my old 2GB was half used up and I need to save memory for video so now I'll give my mom my 2GB for her RAZR2 oh and for those interested got it off eBay for 26.00 free shipping from DZ-TECH a U.S. seller ordered it last friday night got it today one week wait for cheap mem boost sweet.