I've been using portable mp3 players since Philips first released the Expanium.  I still have it and it still works, but the features are slim.  I use the player almost exclusively for audio books on mp3, but I throw music in there occasionally.  I had been holding out for a player that was slim, had internal batteries that recharged in the unit and one that had good resume features.  The SlimX iMP-350 exceeded my expectations!  When I first got it, I upgraded the firmware without a hitch.  I have been using my SlimX constantly for the last two weeks.  I haven't found a flaw yet, but I continue to be pleasantly surprised with all the features.  I question other SlimX reviews about how some people couldn't get the disc to read, to get firmware to install, etc.  There is a wide range of skill levels regarding computing, burning cds, etc.  Keep that in mind.  One totally sweet feature...  It remembers where I was on the disc, two discs ago.  In other words, I removed a disc, played another, and replaced the disc and it resumed right where I was on that disc!  This is the unit to buy.
I've been using portable mp3 players since Philips first released the Expanium. I still have it and it still works, but the features are slim. I use the player almost exclusively for audio books on mp3, but I throw music in there occasionally. I had been holding out for a player that was slim, had internal batteries that recharged in the unit and one that had good resume features. The SlimX iMP-350 exceeded my expectations! When I first got it, I upgraded the firmware without a hitch. I have been using my SlimX constantly for the last two weeks. I haven't found a flaw yet, but I continue to be pleasantly surprised with all the features. I question other SlimX reviews about how some people couldn't get the disc to read, to get firmware to install, etc. There is a wide range of skill levels regarding computing, burning cds, etc. Keep that in mind. One totally sweet feature... It remembers where I was on the disc, two discs ago. In other words, I removed a disc, played another, and replaced the disc and it resumed right where I was on that disc! This is the unit to buy.