Actually the encoder pack that is available for evaluation on our site (MPEG-1/-2 Std) http://elecard.com/products/encoder_pack.shtml
does not contain the AAC encoder. The Encoder packs that comprise it are Standard MPEG-4 Encoder Pack and Full Encoder pack (which components are stated in the table under the buy now link). We will modify the encoder pack page on the site to get rid of the ambiguity.
Please write to our sales department email@example.com
with the request to evaluate either Standard MPEG-4 Encoder Pack or Full Encoder pack, if you are looking for the AAC encoder, and we will provide you with access to the evaluation verisons of them after you sign the NDA.