EncSpot thinks it's MPEG 2.5 layer 3.

This is what it generates for the Dracula audiobook.

Bitrates:
----------------------------------------------------
16 |||||||||||||||||||||||||||||||||||||||| 100.0%
----------------------------------------------------

Type : mpeg 2.5 layer III
Bitrate : 16
Mode : mono
Frequency : 11025 Hz
Frames : 17639
Length : 00:15:21
Av. Reservoir : 156
Emphasis : none
Scalefac : 28.3%
Bad Last Frame : no
Encoder : FhG (ACM or producer pro)
Lame Header : No

--[ EncSpot 2.0 ]--[ http://www.guerillasoft.com ]--

- Trevor