With a free audio tool like this:
http://www.download.com/Audacity/3000-2170_4-10606824.html?tag=lst-4-1
You can add 5 or many seconds as you want to your track. Also you can create a big file where you can repeat the section as many times as you want.
Is a perfect solution, however will take more time but once you learn to use the software will be real easy, I think.
Hi Folks,
I'm looking for an mp3 player with the ability to repeat a short section of what is being played. I want to listen to language podcasts and dictation exercises and be able to repeat a phrase until I can repeat it (or write it) correctly. Simple to full-featured is fine with me, as I also have a lot of foreign-language videos and music.
Any suggestions would be greatly appreciated!

Chowhound
Comic Vine
GameFAQs
GameSpot
Giant Bomb
TechRepublic