Tardis Technologies » iTunes http://www.tardistech.com/wp Advanced Software for Microsoft Windows and the Web Fri, 13 Jan 2012 15:21:35 +0000 en hourly 1 http://wordpress.org/?v=3.3.1 Convert AAC to M4A http://www.tardistech.com/wp/2011/07/24/convert-aac-to-m4a/ http://www.tardistech.com/wp/2011/07/24/convert-aac-to-m4a/#comments Sun, 24 Jul 2011 18:51:27 +0000 Rob http://www.tardistech.com/wp/?p=135 I needed to wrap an AAC file in an M4A container so I could load it into my Windows Phone 7 (WP7) music collection.  First I downloaded the FFmpeg software from here:

http://ffmpeg.zeranoe.com/builds/

Then I unzipped the files and ran the following command:

C:\FFmpeg\bin>ffmpeg -i "song.aac" -acodec copy -absf aac_adtstoasc "song.m4a"

That solved the problem of not being able to add an “MP3″ tag to my audio file.

Rob

]]> http://www.tardistech.com/wp/2011/07/24/convert-aac-to-m4a/feed/ 0 (Re)installing the iTunes COM API in Windows http://www.tardistech.com/wp/2006/04/10/reinstalling-the-itunes-com-api-in-windows/ http://www.tardistech.com/wp/2006/04/10/reinstalling-the-itunes-com-api-in-windows/#comments Tue, 11 Apr 2006 00:07:49 +0000 Rob http://www.tardistech.com/wp/?p=7 I ran into a problem recently where a third-party application could not launch iTunes and the Apple iTunes COM SDK also could not launch iTunes.  I have the 64-bit version of Windows XP Professional (x64 Edition) installed on my Athlon 64 computer and initially thought that perhaps MarkAble (an excellent tool for converting audio files into iTunes/iPod Audiobooks) was not working correctly on my 64-bit OS.  However, its problem was with launching iTunes, not calling any of iTunes’ functionality.

Technical Explanation

It was not a 64-bit issue at all. For some reason, my iTunes COM type library (TLB) was never registered on the system.  So, values like “HKEY_LOCAL_MACHINE\SOFTWARE\Classes\iTunes.Application” and “HKEY_LOCAL_MACHINE\SOFTWARE\Classes\iTunes.Application.1″ were not registered on my system. Neither the ITunes.Application GUID (DC0C2640-1415-4644-875C-6F4D769839BA) nor the iTunes TypeLib for all of the COM interfaces (9E93C96F-CF0D-43f6-8BA8-B807A3370712) showed up anywhere in my registry.

Possible Explanations

What caused this?  This may happen when iTunes does not complete its installation process or when the type libraries do not get registered correctly. Either situation could occur on a 32-bit or a 64-bit version of Windows.

Solution

How did I fix it? I just dropped to a command-prompt, changed to the “C:\Program Files (x86)\iTunes” directory, and issued the following command:

itunes /regserver

That did the trick!  Now MarkAble works like a charm.  The iTunes COM SDK should also work fine now.

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