Yes, you need the asd files s they contain your warping info, be sure you click the save button in each clip after you warp them!
Sadly, no way to collect them in one location, they need to always be with the source files.
oh god, so i an going to have to have a load of ableton analysis files mixed in with my music library? bit of a nightmare, will saving the project when the tracks are loaded into performance clips save the warping? so they are held within the same project file? or will they still loose warping next time i open it?
I could manage only using 1 ableton file to DJ and keeping all my tracks in the project if it meant not having to deal with loads of data files!