[M4IF Technotes] Is AAC used in MPEG-2 applications today

[Ben Waggoner]

Folks,
    Not strictly a MPEG-4 question, but I figure y'all certainly know the
answer.
    I know that AAC was originally designed for use with MPEG-2.  However,
are there any real-world applications where it is used with MPEG-2 today?  I
know of its uses in secure audio formats and such, and of course in MPEG-4.
Ben Waggoner
Interframe Media <http://www.interframemedia.com>
Digital Video Compression Consulting, Training, and Encoding