I wish Mp3tag can. I have some "hard-tagged" M4A audio files, and I really want to edit/or remove atom from them.
Using the "Remove Tag" command is not working for atoms.
Example: Here is information extracted from a M4A file via MediaInfo program.
Unrecognized atoms by Mp3tag are in bold.
QUOTE
General
Complete name : D:\New Folder\10 I Won't Last a Day Without You.m4a
Format : MPEG-4
Format profile : Apple audio with iTunes info
Codec ID : M4A
File size : 7.79 MiB
Duration : 3mn 52s
Overall bit rate mode : Variable
Overall bit rate : 281 Kbps
Album : A song for you
Album/Performer : Carpenters
Part/Position : 1
Part/Total : 1
Track name : I won't last a day without you
Track name/Position : 10
Track name/Total : 13
Performer : Carpenters
Genre : Rock
Recorded date : UTC 1972-06-01 00:00:00
Tagged date : UTC 2011-10-02 16:41:12
Writing application : Http://www.indetime.com
Copyright : ℗ 1972 UMG Recordings, Inc.
Cover : Yes
apID : alecbudow@hotmail.com
cnID : 357935
rtng : 0
atID : 117982008
plID : 357947
geID : 21
sfID : 143441
akID : 0
stik : 1
purd : 2011-10-02 07:47:52
soal : Song for You (Original Recording Remastered)
xid : Universal:isrc:USAM17200061
flvr : 2:256
iTunMOVI : <?xml version="1.0" encoding="UTF-8"?> / <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> / <plist version="1.0"> / <dict> / <key>asset-info</key> / <dict> / <key>file-size</key> / <integer>8170517</integer> / <key>flavor</key> / <string>2:256</string> / </dict> / </dict> / </plist>
©url : http://www.indetime.com
furl : http://www.indetime.com
aurl : http://www.indetime.com
surl : http://www.indetime.com
rnam : Http://www.indetime.com
rurl : http://www.indetime.com
burl : http://www.indetime.com
tvsn : 0
tves : 0
rati : (Binary)
Audio
ID : 1
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 3mn 52s
Bit rate mode : Variable
Bit rate : 256 Kbps
Maximum bit rate : 279 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 7.22 MiB (93%)
Language : English
Tagged date : UTC 2011-10-02 16:41:12
Complete name : D:\New Folder\10 I Won't Last a Day Without You.m4a
Format : MPEG-4
Format profile : Apple audio with iTunes info
Codec ID : M4A
File size : 7.79 MiB
Duration : 3mn 52s
Overall bit rate mode : Variable
Overall bit rate : 281 Kbps
Album : A song for you
Album/Performer : Carpenters
Part/Position : 1
Part/Total : 1
Track name : I won't last a day without you
Track name/Position : 10
Track name/Total : 13
Performer : Carpenters
Genre : Rock
Recorded date : UTC 1972-06-01 00:00:00
Tagged date : UTC 2011-10-02 16:41:12
Writing application : Http://www.indetime.com
Copyright : ℗ 1972 UMG Recordings, Inc.
Cover : Yes
apID : alecbudow@hotmail.com
cnID : 357935
rtng : 0
atID : 117982008
plID : 357947
geID : 21
sfID : 143441
akID : 0
stik : 1
purd : 2011-10-02 07:47:52
soal : Song for You (Original Recording Remastered)
xid : Universal:isrc:USAM17200061
flvr : 2:256
iTunMOVI : <?xml version="1.0" encoding="UTF-8"?> / <!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd"> / <plist version="1.0"> / <dict> / <key>asset-info</key> / <dict> / <key>file-size</key> / <integer>8170517</integer> / <key>flavor</key> / <string>2:256</string> / </dict> / </dict> / </plist>
©url : http://www.indetime.com
furl : http://www.indetime.com
aurl : http://www.indetime.com
surl : http://www.indetime.com
rnam : Http://www.indetime.com
rurl : http://www.indetime.com
burl : http://www.indetime.com
tvsn : 0
tves : 0
rati : (Binary)
Audio
ID : 1
Format : AAC
Format/Info : Advanced Audio Codec
Format profile : LC
Codec ID : 40
Duration : 3mn 52s
Bit rate mode : Variable
Bit rate : 256 Kbps
Maximum bit rate : 279 Kbps
Channel(s) : 2 channels
Channel positions : Front: L R
Sampling rate : 44.1 KHz
Compression mode : Lossy
Stream size : 7.22 MiB (93%)
Language : English
Tagged date : UTC 2011-10-02 16:41:12
We can remove atom from files by using AtomicParsley, but it's command-line program; too hard for average users.
Thank you for reading.