Solved: Make music playlists on USB to play in correct sequence
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Thread: Solved: Make music playlists on USB to play in correct sequence

  1. #1
    Join Date
    Apr 2013
    Location
    Everett, WA, USA
    Posts
    3

    Default Solved: Make music playlists on USB to play in correct sequence

    After 4 days in my new Volt, I just had to master this music on USB flash drive thing.
    Then I read that it likes to rearrange songs? Hmmm. Why would I want them in alphabetical order?

    So I did some tests...
    Note: I use Linux on my home computer not MS Windows.

    1. Music formats:
    Can it read .ogg files (Ogg-Vorbis, often used on Linux)?
    NO

    MP3 files?
    YES

    WMA files?
    YES

    2. Can it read playlists?
    xspf = XML Shareable Playlist Format
    NO

    m3u = MPEG Version 3.0 Extended
    YES*

    m3u8 = MPEG Version 3.0 Extended for Unicode
    YES*

    pls = Shoutcast playlist version 2
    YES

    3. * Delving into Playlists:
    A playlist is really just a text file with information about each song.
    At its simplest, the m3u format requires nothing more than the filenames.
    See: http://forums.winamp.com/showthread.php?threadid=65772 for more info on playlist formats.

    When I first exported an M3U format playlist from my music player application onto the USB flash drive, it didn't work in my Volt.

    Once I opened the .m3u file in a text editor, it was apparent why:
    The full path (including the name of the drive) was being used for the mp3 file locations:
    /media/USB20FD/Classical/Altan/Altan_-_Runaway_Sunday_00_-_Suil_Ghorm.mp3

    when all that was needed was:
    /Classical/Altan/Altan_-_Runaway_Sunday_00_-_Suil_Ghorm.mp3


    (Note: I had a folder called "Altan" in a folder called "Classical". Yes, I know it doesn't belong there.)
    /media/USB20FD is what my Linux OS calls this particular thumbdrive. This makes it an absolute path, and you don't want that.

    You need to use 'relative' paths, not 'absolute' paths.
    For Windows users, that means remove the "C:\" from the front.
    If you want the playlist to work on both the Volt and on Linux, don't use the / at the front.

    Does it work with both forward and backward slashes?
    YES

    This works:
    /Classical/Altan/Altan_-_Runaway_Sunday_00_-_Suil_Ghorm.mp3

    and this also works:
    \Classical\Altan\Altan_-_Runaway_Sunday_00_-_Suil_Ghorm.mp3

    and this:
    Classical/Altan/Altan_-_Runaway_Sunday_00_-_Suil_Ghorm.mp3

    4. Fixing the Alphabetical playlist "Feature".
    Can I use a playlist to ensure that Vivaldi's "Autumn" plays after "Summer"?
    YES

    How simple can the playlist file be? Just need filenames, that's all.
    1. Create a text file.
    2. Name it with .m3u file extension.
    3. Add the filenames, in the order you want, one song per line. If they are in folders, use the path from the playlist to the file.
    In this case, playlist is on the root of the drive, and the songs are as well. (no folders)

    Filename: "Vivaldi Four Seasons.m3u"
    Code:
    Spring_Mvt_1__Allegro.mp3
    Spring_Mvt_2__Largo.mp3
    Spring_Mvt_3__Allegro.mp3
    Summer_Mvt_1__Allegro_non_molto.mp3
    Summer_Mvt_2__Adagio.mp3
    Summer_Mvt_3__Presto.mp3
    Autumn_Mvt_1__Allegro.mp3
    Autumn_Mvt_2__Adagio_molto.mp3
    Autumn_Mvt_3__Allegro.mp3
    Winter_Mvt_1__Allegro_non_molto.mp3
    Winter_Mvt_2__Largo.mp3
    Winter_Mvt_3__Allegro.mp3
    WORKS! Summer is BEFORE Autumn! YAY! :-)
    Attached Images

  2. #2
    Join Date
    Feb 2013
    Location
    Cedar Park, Texas
    Posts
    609

    Default

    Quote Originally Posted by GreenLinuxFreak View Post
    After 4 days in my new Volt, I just had to master this music on USB flash drive thing.
    Then I read that it likes to rearrange songs? Hmmm. Why would I want them in alphabetical order?

    So I did some tests...
    Note: I use Linux on my home computer not MS Windows.

    1. Music formats:
    Can it read .ogg files (Ogg-Vorbis, often used on Linux)?
    NO

    MP3 files?
    YES

    WMA files?
    YES

    2. Can it read playlists?
    xspf = XML Shareable Playlist Format
    NO

    m3u = MPEG Version 3.0 Extended
    YES*

    m3u8 = MPEG Version 3.0 Extended for Unicode
    YES*

    pls = Shoutcast playlist version 2
    YES

    3. * Delving into Playlists:
    A playlist is really just a text file with information about each song.
    At its simplest, the m3u format requires nothing more than the filenames.
    See: http://forums.winamp.com/showthread.php?threadid=65772 for more info on playlist formats.

    When I first exported an M3U format playlist from my music player application onto the USB flash drive, it didn't work in my Volt.

    Once I opened the .m3u file in a text editor, it was apparent why:
    The full path (including the name of the drive) was being used for the mp3 file locations:
    /media/USB20FD/Classical/Altan/Altan_-_Runaway_Sunday_00_-_Suil_Ghorm.mp3

    when all that was needed was:
    /Classical/Altan/Altan_-_Runaway_Sunday_00_-_Suil_Ghorm.mp3


    (Note: I had a folder called "Altan" in a folder called "Classical". Yes, I know it doesn't belong there.)
    /media/USB20FD is what my Linux OS calls this particular thumbdrive. This makes it an absolute path, and you don't want that.

    You need to use 'relative' paths, not 'absolute' paths.
    For Windows users, that means remove the "C:\" from the front.
    If you want the playlist to work on both the Volt and on Linux, don't use the / at the front.

    Does it work with both forward and backward slashes?
    YES

    This works:
    /Classical/Altan/Altan_-_Runaway_Sunday_00_-_Suil_Ghorm.mp3

    and this also works:
    \Classical\Altan\Altan_-_Runaway_Sunday_00_-_Suil_Ghorm.mp3

    and this:
    Classical/Altan/Altan_-_Runaway_Sunday_00_-_Suil_Ghorm.mp3

    4. Fixing the Alphabetical playlist "Feature".
    Can I use a playlist to ensure that Vivaldi's "Autumn" plays after "Summer"?
    YES

    How simple can the playlist file be? Just need filenames, that's all.
    1. Create a text file.
    2. Name it with .m3u file extension.
    3. Add the filenames, in the order you want, one song per line. If they are in folders, use the path from the playlist to the file.
    In this case, playlist is on the root of the drive, and the songs are as well. (no folders)

    Filename: "Vivaldi Four Seasons.m3u"
    Code:
    Spring_Mvt_1__Allegro.mp3
    Spring_Mvt_2__Largo.mp3
    Spring_Mvt_3__Allegro.mp3
    Summer_Mvt_1__Allegro_non_molto.mp3
    Summer_Mvt_2__Adagio.mp3
    Summer_Mvt_3__Presto.mp3
    Autumn_Mvt_1__Allegro.mp3
    Autumn_Mvt_2__Adagio_molto.mp3
    Autumn_Mvt_3__Allegro.mp3
    Winter_Mvt_1__Allegro_non_molto.mp3
    Winter_Mvt_2__Largo.mp3
    Winter_Mvt_3__Allegro.mp3
    WORKS! Summer is BEFORE Autumn! YAY! :-)
    Why does your LCD have that turquoise color look. Are we able to change the LCD display colors?

    Thanks,

    Ian B

  3. #3
    Join Date
    Apr 2013
    Location
    Everett, WA, USA
    Posts
    3

    Default

    No, I cheated on the image, as google was faster than taking my camera out to the garage. It's from http://www.chevrolet.com/ownership/m...ained-usb.html

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  6. #4
    Join Date
    Apr 2013
    Location
    Everett, WA, USA
    Posts
    3

    Default

    I also tested putting playlists into other playlists, but that didn't work either. That feature isn't usually well supported, 3 out of 4 audio player applications on my Linux PC don't work for that either, so it's no surprise.

  7. #5
    Join Date
    Oct 2010
    Location
    Chicagoland VIN:B-01234
    Posts
    4,143

    Default

    Excellent job and explanation. I think I attempted M3U in the past as a test but don't recall it working. Thanks for clarifying. I'll add this to the 'FAQ'.

    I just found a past post I had on the manual content which does mention m3u/pls and relative paths.

    http://gm-volt.com/forum/showthread....217#post190217

    2012 manual states this:

    USB MP3 Player and USB Drives

    . The USB MP3 players and USB drives connected must comply with the USB Mass Storage Class specification (USB MSC).

    . Only USB MP3 players and USB drives with a sector size or 512 bytes and a cluster size smaller or equal to 32 kbytes in the FAT32 file system are supported.

    . Hard disk drives are not supported.

    . The following restrictions apply for the data stored on a USB MP3 player or USB device:

    ‐ Maximum folder structure depth: 11 levels.

    ‐ Maximum number of MP3/WMA files that can be displayed: 1,000

    . WMA with Digital Rights Management (DRM) from online music shops cannot be played. WMA files can only be played back safely if they were created with Windows Media Player version 8 or later.

    ‐ Applicable playlist extensions are: .m3u, .pls.

    ‐ Playlist entries must be in the form of relative paths.

    ‐ The system attribute for folders/files that contain audio data must not be set.

  8. #6
    Join Date
    Feb 2013
    Location
    Chicagoland
    Posts
    1,599

    Default

    Brilliant!

    find * -type f -iname \*.mp3 | sed -n 1,1000p >list.m3u

    Then edit the file names into the order you want. That's Linux. You can do it in Windows, too. It just takes more editing.
    2013 White Diamond Volt, fully loaded, built Dec 2012, delivered Dec 20, 2012, purchased Dec 31, 2012 (D-3520)

  9. #7
    Join Date
    Feb 2012
    Location
    No. Virginia
    Posts
    1,575

    Default

    For those of us with built-in hard-drives unfortunately there is no way to create/edit the playlist or filenames after a CD is ripped onto the HDD and the track titles are downloaded from Gracenote CDDB. The alphabetical play order remains an issue in this case.

  10. #8
    Join Date
    Oct 2012
    Location
    Oklahoma
    Posts
    595

    Default

    thanks for the info! I had already experimented and done something similar for at least some of my music folders, but it's good to see folks doing the systematic investigation.

  11. #9
    Join Date
    Aug 2012
    Location
    DC Metro
    Posts
    33

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    Maybe its different with iPods, but I use Mediamonkey to create playlists and sync those playlists to my iPod and it works flawlessly.
    2012 Volt - Silver Ice Metallic - #15197

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  13. #10
    Join Date
    May 2013
    Location
    Việt Nam
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    Hey. I test this with my System, and this working, thanks for this guide

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