MP3 encoding

Discussion in 'Windows Media Player' started by ap97, Sep 28, 2007.

  1. ap97

    ap97 Guest

    I have both Windows XP and Windows Vista, WMP 10 and 11.

    I'm looking for some kind of Windows Media Plugin or codec pack that I can
    purchase that will install an ACM (Audio Compression Manager) compatible MP3
    encoder, allowing Windows Media Player and other programs to encode MP3s
    using ACM functionality. Ideally, I would like to purchase the pack from
    Microsoft, but third party companies would be fine as well.

    Some more information...

    What I get from my testing and from reading various sources online (although
    I'm not entirely sure about this), is that earlier versions of Windows Media
    Player (9 and earlier?) included a codec that could be used for encoding
    MP3s, While later versions, ex. WMP 11, allow only decoding.

    Microsoft includes a Fraunhofer codec, and it seems that there are three
    different versions of it - l3codeca.acm, l3codecp.acm, and l3codecx.acm. The
    x version is decode-only (?), and is the one enabled by default on my
    computers. To be able to use the other ones, it seems that one would need to
    edit the registry (which I'm not interested in doing).

    There is a MS knowledge base article that states:

    Because of licensing restrictions, you cannot use the L3codeca.acm file that
    is included in Windows Vista to encode MP3 content. (ID 937141)

    And another states:

    Windows Media Player for Windows XP has MP3 encoding plug-in support. To
    enable the Windows Media Player to encode MP3 files, you must license and
    install a compatible MP3 encoder. Windows Media Player supports only Audio
    Compression Manager (ACM) functions to communicate with the MP3 encoders.
    Therefore, the codec must be an ACM codec. (ID 306494)

    So I guess a couple of related questions I have are:

    -How can I "license and install a compatible MP3 encoder"? It doesn't seem
    that I can do that directly from Fraunhofer - their website says they don't
    sell any software.

    -How can I legitimately use the l3codecp.acm and l3codeca.acm codecs that
    Microsoft includes?

    -What are some programs or codec packs that I can purchase from Microsoft or
    another company, that will install an ACM compatible MP3 codec?

    Another question I have is that Windows Media Player has a feature that
    allows you to rip songs from CDs to mp3, but doesn't seem to allow you to
    convert files on your hard drive to MP3... why?

    Any help with this would be appreciated.
    ap97, Sep 28, 2007
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  2. ap97

    zachd [MSFT] Guest

    Whoa whoa whoa whoa, how did l3codecx.acm get on your system? That sounds
    like somebody handed you a pirate version of that, since it should know
    better than to stupidly stomp on the A version.

    I don't track who's currently providing MP3 ACM encoding functionality,
    since WMP already provides this functionality internally, and that's about
    as far as I usually track it, sorry. =)
    zachd [MSFT], Oct 13, 2007
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