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| | |-+  M4A tags not updating
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Author Topic: M4A tags not updating  (Read 4152 times)

Offline oldutch

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M4A tags not updating
« on: March 13, 2007, 12:42:24 PM »
I'm not sure if this is the right forum...
I have a few M4A files that I've used Tag&Rename to modify the file information, specifically, the genre. I've tried deleting all the database*.tcd files in the .rockbox folder within my Ipod 5g. I then tried booting rockbox, initializing the Database, waiting, rebooting rockbox but the old genre is still listed in the database. I tried opening the M4A file in winamp on my PC and winamp is reporting the new genre. After I confirmed the file is correct both in Tag&Rename and winamp, I tried blowing away the entire .rockbox structure and rockbox.ipod file, downloaded the latest release (3/13/07) and tried initializing the database again. Rockbox is still reporting the old genre. Where does rockbox look to get the M4A information? Is there something else I can try?
If this isn't the right forum, please let me know.
Thanks,
Andrew
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Offline xlarge

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Re: M4A tags not updating
« Reply #1 on: March 13, 2007, 01:27:44 PM »
Perhaps the files "deleted" were just moved to a trash/recycled-folder on your dap?
Rockbox will index those files aswell...
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Offline oldutch

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Re: M4A tags not updating
« Reply #2 on: March 13, 2007, 01:36:00 PM »
I am running under XP and don't seem to have a 'Recycled' folder within the iPod filesystem. I do have hidden and system files showing as I can see the Recycled folder on my C:\ drive and I can also see the iPod_Control folder in the iPod filesystem. I never deleted any music, only used Tag&Rename to modify the files directly on the iPod. As stated, both Tag&Rename and Winamp are reporting the new, modified genre from the music stored on the iPod filesystem.
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Offline xlarge

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Re: M4A tags not updating
« Reply #3 on: March 13, 2007, 01:52:15 PM »
Just checking now; you don't have them in your ipod control folder either? Itunes stores everything there under random file names.
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Offline oldutch

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Re: M4A tags not updating
« Reply #4 on: March 13, 2007, 01:56:18 PM »
Yea, that's been empty for a while actually. Been using Rockbox for about 6 months now, god I love it! I'm actually going through the painful process of cleaning/organizing the music collection which is what prompted this issue.
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Offline xlarge

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Re: M4A tags not updating
« Reply #5 on: March 13, 2007, 02:00:52 PM »
Ah, one more thing i come to think of, do you have anything listed in exported modifications?
/.rockbox/database_changelog.txt
It's an ascii file so you can use notepad to check it out.

That file should be read on initialization of database aswell.
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Offline Lear

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Re: M4A tags not updating
« Reply #6 on: March 13, 2007, 02:03:28 PM »
Maybe Tag&Rename stores the genre in a different way, so that Rockbox sees the old value, while Winamp sees the new one. If you could create a test file (preferably a small one), I'll take a look at it.
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Offline oldutch

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Re: M4A tags not updating
« Reply #7 on: March 13, 2007, 02:13:57 PM »
How can I create a small test file without infringing on any copyrights? Do you know of a different application to modify .M4A file tag information that I might try instead?
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Offline Lear

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Re: M4A tags not updating
« Reply #8 on: March 13, 2007, 02:55:13 PM »
You can always create a file with "nonsense" audio (like silence, a sine or whatever); the tagging is the important bit.
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Offline oldutch

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Re: M4A tags not updating
« Reply #9 on: March 13, 2007, 03:54:29 PM »
The new file won't even play...

Here are the steps I took.
I created a file in Audacity that contained a 30sec click track.
I exported that file to .mp3 format.
I then used the online utility at zamzar.com to convert the .mp3 to .m4a. (I don't know of another way to get my own .m4a file...)
I used Tag&Rename to create the new .m4a file tag information.
I played the file in Winamp and all worked well (file played and tag info was there).
I moved the file onto the 5g iPod and also removed all the .tcb and .cfg files from the iPod.
I booted rockbox and initialized the database. When it was done I rebooted.
The new file doesn't even show in the database. I used the file browser to play it and the display says:
No file!
(root)
(root)

0:00/0:00                              [1:1]
?kBit  (no id3)

The original file that I was working with would play and the screen also said  (no id3) but when you went to "Show ID3 Info" the wrong genre would appear.
I tried to attach the file but it was too big, I'll re-create my steps and attach a smaller version in a bit...
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Offline oldutch

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Re: M4A tags not updating
« Reply #10 on: March 13, 2007, 04:05:02 PM »
Here is a smaller version of the file, rename the extention to .m4a (it wouldn't let me attach a .m4a file.)

[attachment deleted by admin, too old]
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Offline oldutch

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Re: M4A tags not updating
« Reply #11 on: March 13, 2007, 04:33:48 PM »
Here's another update.
I used Tag&Rename to write yet another genre to the files in question. This time, the genre did change after rockbox updated its database, however, what shows up in Tag&Rename/Winamp as 'Southern Rock' shows up in rockbox as Comedy! I can't for the life of me figure out where it got that tag information from...
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Offline xlarge

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Re: M4A tags not updating
« Reply #12 on: March 13, 2007, 05:02:16 PM »
I'm no expert as you all can and have seen, but can it be some different version of tags?
Id3 v1 vs id3 v2?
What preference do you have in rockbox regarding id3 version?
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Offline oldutch

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Re: M4A tags not updating
« Reply #13 on: March 13, 2007, 05:06:28 PM »
I have rockbox set to prefer id3v2 over id3v1. But these are .m4a formatted files. I didn't think they used id3 tags, do they?
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Offline xlarge

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Re: M4A tags not updating
« Reply #14 on: March 13, 2007, 05:13:55 PM »
Uh.. Ah.. No, no id3tags in m4atracks.

I've downloaded your m4atrack and my rockbox (r12733m-070312) also says "No file".

It's beyond my knowledge i'm afraid...


edit; version + "also"
« Last Edit: March 13, 2007, 05:18:38 PM by xlarge »
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