Crashes audibe-audiobooks and loose contact with the headphone jack

When Audible Books jumps or stutters the player. He leaves out some few seconds. I have tested it with different books and also different quality formats, the result was always the same.
For reference, I wanted my last audio book "The Eighth Map" (unabridged); qid = 1391669378 & sr = 8-1 further hearing at which my last mp3 player died of "mechanical" reasons. Unable to jump to chapter 64 of 104, without changing the software of the GoGear Vibe hung. Since I like to hear unabridged audio books, which are often very long, there is a serious mistake.
In addition, in my copy the headphone jack has had misfires repeatedly, depending on the "rotation" of the headphone plug. This error was found in the simple supplied headphones, high end of Phillips and a small speaker.

Because I do not care the other functions, I packed him after finding the error and it will return.