My whole library was encoded with -e -p4m -md5 -ihs - %d, but I see no MD5 in any of the files' properties. I am running foobar2000 v.1.2.3 on Windows XP.
EDIT: Alright, I am wrong. Not all of it was encoded with -md5. I just re-encoded an album and it works like a charm. Thank you!
Okay, perhaps not.
=== 2. As Walking on Canopy.tak ===============================
File size: 71.58 MB
Header size: 0.07 KB
Unused: 0.00 KB
Compression: 46.91 %
Samples per channel: 40005168
File duration: 907.15 sec
Frame duration: 250 ms
Seek table: Not available
Audio format: PCM, 44100 Hz, 16 Bits, 2 Channels
Encoder: V 2.2.0, -p4m
Codec: 2 Integer 24 bit (TAK 2.0)
Wave file meta data: Not available
MD5: 529bcd2cb0ad0ff2fcbe83e7f38529ae
APEv2-Tag: Yes / 14 Items / 0.46 KB
Status: Ok
File name : 2. As Walking on Canopy.tak
Folder name : H:\[1] Albums\Silent Whale Becomes a° Dream\[2011] Canopy
File path : H:\[1] Albums\Silent Whale Becomes a° Dream\[2011] Canopy\2. As Walking on Canopy.tak
Subsong index : 0
File size : 71.5 MB (75 061 983 bytes)
Last modified : 2012-10-31 22:22:14
Duration : 15:07.147 (40 005 168 samples)
Sample rate : 44100 Hz
Channels : 2
Bits per sample : 16
Bitrate : 662 kbps
Codec : TAK
Codec profile : TAK 4 max
Encoding : lossless
Tool : TAK encoder 2.2.0
Tag type : apev2
Embedded cuesheet : no
Track gain : -8.04 dB
Track peak : 0.988068
Album gain : -7.30 dB
Album peak : 0.988068
However, if I modify the file even slightly (edit its tags, rename it, etc.), the MD5 hash in the Properties dialog appears out of nowhere. Weird, isn't it?