Files that are hard to open or transfer

As I move my audio files to a new computer, some old digital audio files refuse to be copied. I find they also won't open in Audacity. However, they do open in the old SoundForge program. So, I first open them in SoundForge and re-save. They still don't copy, but at least then I can open them in Audacity, and after re-saving from there, they can be transferred. Soundforge seems to be quite a forgiving and stable program, so worth keeping around for those things.