The BMW sound system that my Wife's Mini uses sorts songs on an MP3 DISK by track number using alpha-numeric sorting. This means that track 10 comes before track 2 because 2>1. So, When I rip music for her car, I must make sure that track 2 is labeled track 02. Sound Juicer's default settings don't do that. Here's how to change that setting:
Navigate to apps -> sound juicer
Change the value "file_pattern" from %dn - %tt to %dN - %tt. Notice the capital "N".