I'm going to be getting some new headphones pretty soon. What do you guys think of Sennheiser HD555s versus Sennheiser HD428s?

Are the HD555s notably better than the HD428s?

w/r/t headphones, I'll be using Sennheiser HD428s, which seem very well reviewed. Do you have an opinion on these, or any recommendations?

Do you think one or the other is better in terms of sound quality?

Thanks for your prompt response. I'm sorry, I don't think I made myself clear. I'm actually rather dissatisfied with Sansa players in general. I probably just have bad luck, but like I said, it seems like they break all the time. So I'm looking for an upgrade to a better kind of player. I was...

Hey there, I'm looking to purchase a new MP3 player, and this seems like the place to ask for advice. Honestly, I'm just looking for something that does music (in as many formats as possible, I suppose, even though I don't usually use FLACs, OGGs, etc.). I could care less about apps, video...