> ? o All the ac3-in-wav files (at least all I have) > seem to have 8 bytes before > ? ? every ac3 frame: 72 f8 1f 4e 01 00 10 57. I > guess this case can be added > ? ? to the probe (either checking the byte values > or not). > That's a SPDIF Preamble, which consists of a startcode and some data fields.