Alright curtis, this guide here is for WAV -> MP2.
What you want to do is opposite, MP2 -> WAV.
Just use common sense, adjust guide as needed.
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First, you need 3 pieces of free software:
BESWEET
BESWEET GUI
TMPGENC
====== STEP 1 === DOWNLOADING/INSTALLING THE SOFTWARE ======
http://dspguru.doom9.net for BESWEET and GUI (official site)
http://www.tmpgenc.net/e_download.html for TMPGENC (official site)
Use WINZIP to unzip the Besweet file. Extract the files to "C:\Program Files\Besweet". The software we'll be using is in "C:\Program Files\Besweet\GUI07b" folder and is called "BeSweetGUI.exe". You can drag a shortcut to your desktop to make it easy to find.
Any new TMPGENC is fine. The 30-day trial is for MPEG2 encoding. The MPEG1 and TOOLS of the software are freeware, no expiration. We're not encoding anything anyway, just using the TOOLS.
====== STEP 2 === CONVERTING WAV TO MP2 WITH BESWEET ======
Open BESWEET GUI. Important stuff in red boxes, with numbers. You'll see this:
#1 Set the location for where you want to save the MP2 files. Type anything in as the filename. I usually just mash some keys. This will not affect your file names in any way.
#2 We want the MP2 encoding option
#3 This is the TOOLAME options, the MP2 encoding options.
#4 This is the BATCH mode button. I never use single mode. This is why we did not bother to set a source in #1.
Now that it's all setup, go to BATCH MODE. Open up MY COMPUTER, and then drag all the WAV files into this window. Click WAV -> multiple MP2's.
Sit back and wait. It should not be more than a couple of minutes per file. You're looking at 10 minutes max for a couple of movie-length files.
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That should make sense.