About your discovery #4
Don’t know why, but player freezes when it tries to play this file http://www58.zippyshare.com/v/XGHgn7dx/file.html
-> The Clip Jam will not reliably play m4a files encoded by FFmpeg.
http://forums.sandisk.com/t5/SanDisk-Clip-Jam/Clip-Jam-won-t-play-my-aac-m4a-files/td-p/350868
The file won’t play because it isn’t AAC, it’s ALAC.
~$ mediainfo "new - mail.m4a" General Complete name : new - mail.m4a Format : MPEG-4 Format profile : Apple audio with iTunes info Codec ID : M4A File size : 167 KiB Duration : 3s 437ms Overall bit rate mode : Variable Overall bit rate : 399 Kbps Audio ID : 1 Format : ALAC Codec ID : alac Codec ID/Info : Apple Lossless Audio Codec Duration : 3s 437ms Source duration : 3s 396ms Source\_Duration\_LastFrame : -41ms Bit rate mode : Variable Bit rate : 397 Kbps Channel(s) : 2 channels Sampling rate : 44.1 KHz Bit depth : 16 bits Stream size : 167 KiB (100%) Source stream size : 167 KiB (100%) Language : English mdhd\_Duration : 3437
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**SanDisk Clip Sport/Jam supported audio/music formats**
AA (audible)
AAC
FLAC (16 bit)
MP3
Ogg Vorbis
WAV
WMA (DRM free)
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