MP3 player app that allows fine controlled ff/rw or bookmarks

I have several CD's from artists that love doing hour long songs and the like. However, some sections I don't like, and sometimes I want to skip to a certain section.

The built-in MP3 player's ff/rw makes it easy to skip to say the middle, but moving one click left or right can jump several minutes or more. Is there a way to make it skip finer amounts, or a program that has better fw/rw control? Bookmarking would also work.

I have experience in programing if there's an acceptable open source one that I could hack up myself. I don't want a fancy player that has all these extra features that I wouldn't use.