I am wishing to save my project as a bundle file for regular archiving. However, I get a message saying "projects containing audio snap markers or time stretched data cannot be saved in bundle format". I do not remember using either of those options, but admit I obviously must have at some stage in the project. As I have hundreds of clips and small sections, is there an easy way to identify which one it might be - without going through every single clip? 

If I remember right Audiosnap isn't compatible with Bundle files. If you use per project audio files, saving that folder will give you everything you need including Audiosnap.
 
Rocky

Yeah I appreciate what you are saying Rocky and I do use per project audio files (for this project too), but, I also like to use Bundle files because of the 1 file idea. The issue for me is how to find which clip has had audiosnap inadvertantly enabled. I don't normally use Audiosnap and so don't need to maintain that function in my file.