Some samples seem to get encoded incorrectly. Please see an example (AWE32_20SEC.wav) below. I tried different compiles of Rev11 (including the latest Rareware version), but the results were the same.
Command-line used:
hmp3 AWE32_20SEC.wav AWE32_20SEC.mp3 -X2
C:\awe>madplay -d -v "AWE32_20SEC.mp3"
MPEG Audio Decoder 0.15.2 (beta) - Copyright (C) 2000-2004 Robert Leslie et al.
00:00:02 Layer III, VBR (avg 145 kbps), 44100 Hz, joint stereo (MS), no CRC
error: frame 98: bad audio data length
00:00:08 Layer III, VBR (avg 157 kbps), 44100 Hz, joint stereo (LR), no CRC
error: frame 325: bad audio data length
00:00:08 Layer III, VBR (avg 157 kbps), 44100 Hz, joint stereo (MS), no CRC
error: frame 333: bad audio data length
00:00:08 Layer III, VBR (avg 157 kbps), 44100 Hz, joint stereo (MS), no CRC
error: frame 341: bad audio data length
00:00:11 Layer III, VBR (avg 157 kbps), 44100 Hz, joint stereo (MS), no CRC
error: frame 460: bad audio data length
00:00:12 Layer III, VBR (avg 156 kbps), 44100 Hz, joint stereo (MS), no CRC
error: frame 468: bad audio data length
error: frame 469: bad audio data length
00:00:12 Layer III, VBR (avg 155 kbps), 44100 Hz, joint stereo (MS), no CRC
error: frame 488: bad audio data length
00:00:12 Layer III, VBR (avg 154 kbps), 44100 Hz, joint stereo (MS), no CRC
error: frame 496: bad audio data length
00:00:14 Layer III, VBR (avg 148 kbps), 44100 Hz, joint stereo (MS), no CRC
527 frames decoded (0:00:13.7), +0.2 dB peak amplitude, 2 clipped samples
C:\awe>lame --decode AWE32_20SEC.mp3
input: AWE32_20SEC.mp3 (44.1 kHz, 2 channels, MPEG-1 Layer III)
output: AWE32_20SEC.mp3.wav (16 bit, Microsoft WAVE)
skipping initial 529 samples (encoder+decoder delay)
Frame# 97/537 40 kbps MS mpg123: Can't rewind stream by 33 bits!
Frame# 323/537 96 kbps MS mpg123: Can't rewind stream by 33 bits!
Frame# 330/537 80 kbps MS mpg123: Can't rewind stream by 63 bits!
Frame# 337/537 80 kbps MS mpg123: Can't rewind stream by 52 bits!
Frame# 455/537 64 kbps MS mpg123: Can't rewind stream by 54 bits!
Frame# 462/537 80 kbps MS mpg123: Can't rewind stream by 108 bits!
Frame# 462/537 112 kbps MS mpg123: Can't rewind stream by 54 bits!
Frame# 480/537 80 kbps MS mpg123: Can't rewind stream by 33 bits!
Frame# 487/537 64 kbps MS mpg123: Can't rewind stream by 54 bits!
Frame# 527/537 32 kbps MS
Just an FYI..