video codec: H.264/AVC
file type: mp4 iso v.2
audio: MPEG-2/4, 44100 Hz, 128 kbps
size: 100 kB (has to be under 300 kB because that's the limit in my country)
It plays just fine on my S2, but when I sent it to another person, they said they can't retrieve it.
What can I do to make it work?