They can actually be unencoded if you have the activation key. ffmpeg -activation_bytes 62689101 -i Volume1.aax -vn -c:a copy -v debug Voume1.mp4
This is now my error message. [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9684000000] [aax] file checksum == d72f1f04e3c73d0bc68e742db1bc69b58dc3a500 [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9684000000] [aax] mismatch in checksums! [mov,mp4,m4a,3gp,3g2,mj2 @ 0x7f9684000000] error reading header [AVIOContext @ 0x7f9683700420] Statistics: 32768 bytes read, 0 seeks Volume1.aax: Invalid data found when processing input However, this one works ….. Taken from the github site…. ffmpeg -activation_bytes 62689101 -i Audible_AAX_sample_62689101.aax -vn -c:a copy -v debug output_sample.mp4 So either my activation_bytes are wrong …. or something else is amiss. > On 14 Jan 2016, at 03:58, G A <numinous_...@outlook.com> wrote: > > they are encrypted files, ffmpeg is not going to crack it > > Audible AAX files are encrypted M4B files, and they can be decrypted by > specifying a 4 byte activation secret. > > > > -- > View this message in context: > http://ffmpeg-users.933282.n4.nabble.com/Converting-Audible-AAX-tp4673787p4674063.html > Sent from the FFmpeg-users mailing list archive at Nabble.com. > _______________________________________________ > ffmpeg-user mailing list > ffmpeg-user@ffmpeg.org > http://ffmpeg.org/mailman/listinfo/ffmpeg-user Robert Chalmers rob...@chalmers.com.au Quantum Radio: http://tinyurl.com/lwwddov Mac mini 6.2 - 2012, Intel Core i7,2.3 GHz, Memory:16 GB. El-Capitan 10.11. 2TB Storage made up of - Drive 0:HGST HTS721010A9E630. Upper bay. Drive 1:ST1000LM024 HN-M101MBB. Lower Bay _______________________________________________ ffmpeg-user mailing list ffmpeg-user@ffmpeg.org http://ffmpeg.org/mailman/listinfo/ffmpeg-user