You dont need OST... all music can be easily extracted right from the game!
All You need is XA2WAV app from Deniz Oezmen (http://oezmen.eu
/) and basic knowledge of commandline.
For lazy ones I made a little batch file which will help you (with XA2WAV) extract all music from driver parallel lines and with LAME MP3 Encoder convert into MP3.
You just need to download and extract into Music folder (in Driver Parallel Lines folder) all files from XA2WAV (http://oezmen.eu/gameresources/files/driver.zip
) and from LAME MP3 Encoder (http://www.free-codecs.com/download_soft.php?d=5820&s=22
) along with "Driver_Parallel_Lines_Music_Extractor.bat" and "DME.dat" (http://www.filefactory.com/file/b4e842g/n/Driver_Parallel_Lines_Music_Extractor_BatchFile_.zip
), than just run "Driver_Parallel_Lines_Music_Extractor.bat" and after while U will get all music in mp3 ;)
PS: extracting and converting needs around 3 GB of free space