botface, did you look at Encoder1, Encoder2 ... logs? They are backends' output and can give you a better idea about the problem.
I tried some more files. This time it created the output file structure but didn't produce any converted output files. I'm trying to convert to FHG AAC from a variety of source file types. Maybe I don't have something set up correctly (although fhgaac.enc is in the TAudioConverter directory)?
Here's the log :
[12/02/2013 19:35:13] Started deleting temp files...
[12/02/2013 19:35:13] Temp Folder: C:\Documents and Settings\User1\Local Settings\Temp\TAudioConverter\
[12/02/2013 19:35:13] Deleted 1 file(s).
[12/02/2013 19:35:13] Finished deleting temp files.
[12/02/2013 19:35:13] Trying to detect bit depth: 01 - Adam St-James - P4 C Scales, 8 Modes (Starting With III, Then IV, Etc.).m4a [Depth is: ]
[12/02/2013 19:35:13] Trying to detect bit depth: 01 Waiting In The Wings.mp4 [Depth is: ]
[12/02/2013 19:35:13] Trying to detect bit depth: Various~Those_Dance_Band_Years~side1.wav [Depth is: 16]
[12/02/2013 19:35:13] Trying to detect bit depth: 01 Sinfonia in G major, Wq. 182 No. 1 - 1. Allegro di molto.wv [Depth is: 16]
[12/02/2013 19:35:13] Trying to detect bit depth: John Stanley - Concerto for Strings Op2 No1.ogg [Depth is: ]
[12/02/2013 19:35:13Number of commands per process are as follows:
[12/02/2013 19:35:13] Encoder1: 9
[12/02/2013 19:35:13] Encoder2: 6
[12/02/2013 19:35:13] Encoder3: 0
[12/02/2013 19:35:13] Encoder4: 0
[12/02/2013 19:35:13] Encoder5: 0
[12/02/2013 19:35:13] Encoder6: 0
[12/02/2013 19:35:13] Encoder7: 0
[12/02/2013 19:35:13] Encoder8: 0
--------------------------------------------
[12/02/2013 19:35:13] Starting encoding process
[12/02/2013 19:35:13] Command lines:
-y -i "C:\Documents and Settings\User1\My Documents\101 Guitar Tips - Adam St-James\01 - Adam St-James - P4 C Scales, 8 Modes (Starting With III, Then IV, Etc.).m4a" -threads 0 -vn -f wav "C:\Documents and Settings\User1\Local Settings\Temp\TAudioConverter\01 - Adam St-James - P4 C Scales, 8 Modes (Starting With III, Then IV, Etc.).wav"
--vbr 2 "C:\Documents and Settings\User1\Local Settings\Temp\TAudioConverter\01 - Adam St-James - P4 C Scales, 8 Modes (Starting With III, Then IV, Etc.).wav" "C:\Documents and Settings\User1\My Documents\TAC\Documents and Settings\User1\My Documents\101 Guitar Tips - Adam St-James\01 - Adam St-James - P4 C Scales, 8 Modes (Starting With III, Then IV, Etc.).m4a"
"C:\Documents and Settings\User1\My Documents\TAC\Documents and Settings\User1\My Documents\101 Guitar Tips - Adam St-James\01 - Adam St-James - P4 C Scales, 8 Modes (Starting With III, Then IV, Etc.).m4a" -meta:artist="Adam St-James" -meta:title="P4 C Scales, 8 Modes (Starting With III, Then IV, Etc.)" -meta:genre="Data & Other" -meta:composer="Adam St-James" -meta:album="101 Guitar Tips" -meta:year="2006" -meta:comment="Ripped by Winamp"
-y -i "F:\20's 78's on Vinyl (from Arthur)\Various~Those_Dance_Band_Years~side1.wav" -threads 0 -vn -acodec pcm_s16le -f wav "C:\Documents and Settings\User1\Local Settings\Temp\TAudioConverter\Various~Those_Dance_Band_Years~side1.wav"
--vbr 2 "C:\Documents and Settings\User1\Local Settings\Temp\TAudioConverter\Various~Those_Dance_Band_Years~side1.wav" "C:\Documents and Settings\User1\My Documents\TAC\20's 78's on Vinyl (from Arthur)\Various~Those_Dance_Band_Years~side1.m4a"
"C:\Documents and Settings\User1\My Documents\TAC\20's 78's on Vinyl (from Arthur)\Various~Those_Dance_Band_Years~side1.m4a" -meta:artist="Unkown" -meta:title="Unkown" -meta:genre="Unkown" -meta:composer="Unkown" -meta:album="Unkown" -meta:year="0" -meta:comment="TAudioConverter"
-y -i "F:\Audio Files\Classical\Baroque Odds & Ends\John Stanley - Concerto for Strings Op2 No1.ogg" -threads 0 -vn -f wav "C:\Documents and Settings\User1\Local Settings\Temp\TAudioConverter\John Stanley - Concerto for Strings Op2 No1.wav"
--vbr 2 "C:\Documents and Settings\User1\Local Settings\Temp\TAudioConverter\John Stanley - Concerto for Strings Op2 No1.wav" "C:\Documents and Settings\User1\My Documents\TAC\Audio Files\Classical\Baroque Odds & Ends\John Stanley - Concerto for Strings Op2 No1.m4a"
"C:\Documents and Settings\User1\My Documents\TAC\Audio Files\Classical\Baroque Odds & Ends\John Stanley - Concerto for Strings Op2 No1.m4a" -meta:artist="Collegium Musicum 90, Simon Standage" -meta:title="Concerto for Strings Op2 No1" -meta:genre="Baroque" -meta:composer="John Stanley" -meta:album="Concerto for Strings Op2 No1" -meta:year="0" -meta:comment="From Radio"
-y -i "F:\Audio Files\Rock, Pop etc\BBM (Baker, Bruce And Moore)\Around The Next Dream\01 Waiting In The Wings.mp4" -threads 0 -vn -f wav "C:\Documents and Settings\User1\Local Settings\Temp\TAudioConverter\01 Waiting In The Wings.wav"
--vbr 2 "C:\Documents and Settings\User1\Local Settings\Temp\TAudioConverter\01 Waiting In The Wings.wav" "C:\Documents and Settings\User1\My Documents\TAC\Audio Files\Rock, Pop etc\BBM (Baker, Bruce And Moore)\Around The Next Dream\01 Waiting In The Wings.m4a"
"C:\Documents and Settings\User1\My Documents\TAC\Audio Files\Rock, Pop etc\BBM (Baker, Bruce And Moore)\Around The Next Dream\01 Waiting In The Wings.m4a" -meta:artist="BBM (Baker, Bruce And Moore)" -meta:title="Waiting In The Wings" -meta:genre="Rock" -meta:composer="Unkown" -meta:album="Around The Next Dream" -meta:year="1994" -meta:comment="TAudioConverter"
-y -i "F:\Audio Files\Classical\Bach CPE\Bach CPE - Hamburg Sinfonias Nos. 1-6\01 Sinfonia in G major, Wq. 182 No. 1 - 1. Allegro di molto.wv" -threads 0 -vn -acodec pcm_s16le -f wav "C:\Documents and Settings\User1\Local Settings\Temp\TAudioConverter\01 Sinfonia in G major, Wq. 182 No. 1 - 1. Allegro di molto.wav"
--vbr 2 "C:\Documents and Settings\User1\Local Settings\Temp\TAudioConverter\01 Sinfonia in G major, Wq. 182 No. 1 - 1. Allegro di molto.wav" "C:\Documents and Settings\User1\My Documents\TAC\Audio Files\Classical\Bach CPE\Bach CPE - Hamburg Sinfonias Nos. 1-6\01 Sinfonia in G major, Wq. 182 No. 1 - 1. Allegro di molto.m4a"
"C:\Documents and Settings\User1\My Documents\TAC\Audio Files\Classical\Bach CPE\Bach CPE - Hamburg Sinfonias Nos. 1-6\01 Sinfonia in G major, Wq. 182 No. 1 - 1. Allegro di molto.m4a" -meta:artist="Capella Istropolitana, Christian Benda" -meta:title="Sinfonia in G major, Wq. 182 No. 1 - 1. Allegro di molto" -meta:genre="Classical" -meta:composer="Bach CPE" -meta:album="C.P.E. Bach - Hamburg Sinfonias Nos. 1-6" -meta:year="1996" -meta:comment="Wq182"
--------------------------------------------
----Encoding Summary----
-Number of processes: 2
-Copy tags: True
-Extract artwork: True
+Audio
-Encoder: FHG AAC
-VBR: 2
-Bit Depth: Original
+Effects
-Disabled
Temp: C:\Documents and Settings\User1\Local Settings\Temp\TAudioConverter\
Output: C:\Documents and Settings\User1\My Documents\TAC\
----Encoding Summary----
[12/02/2013 19:35:32] Cannot find output file C:\Documents and Settings\User1\My Documents\TAC\Documents and Settings\User1\My Documents\101 Guitar Tips - Adam St-James\01 - Adam St-James - P4 C Scales, 8 Modes (Starting With III, Then IV, Etc.).m4a
[12/02/2013 19:35:32] Cannot find output file C:\Documents and Settings\User1\My Documents\TAC\Audio Files\Rock, Pop etc\BBM (Baker, Bruce And Moore)\Around The Next Dream\01 Waiting In The Wings.m4a
[12/02/2013 19:35:32] Cannot find output file C:\Documents and Settings\User1\My Documents\TAC\20's 78's on Vinyl (from Arthur)\Various~Those_Dance_Band_Years~side1.m4a
[12/02/2013 19:35:32] Cannot find output file C:\Documents and Settings\User1\My Documents\TAC\Audio Files\Classical\Bach CPE\Bach CPE - Hamburg Sinfonias Nos. 1-6\01 Sinfonia in G major, Wq. 182 No. 1 - 1. Allegro di molto.m4a
[12/02/2013 19:35:32] Cannot find output file C:\Documents and Settings\User1\My Documents\TAC\Audio Files\Classical\Baroque Odds & Ends\John Stanley - Concerto for Strings Op2 No1.m4a