I sent an mp3 to a person in US (by email), which she couldnt play on her mac (cutout after approx 1 minute).
mp3 was created by adaudacity (lame plug-in, I guess) with 144 kbit/s. I have never myself had any problems
playing audacity-origin mp3-files, or heard any of my friends having problems with it.
I offered to send the wav-file, which she turned down in fear of risk of virus content (which I never heard of in that context).
I’m aware that I havent supplied much tech detail here, but any pointers to what might be the problem here?