I've tried Aiseesoft DVD to MP4 Suite for Mac and it is has so many bugs and is so slow, that I don't recommend it to anyone. It doesn't do what it claims it does and it freezed my computer. And it seems to have malware in it as well.
I can't believe that they charge you so much for this crappy software.

Ratings of all Aisee soft are very low, so they only manage to distribute their software by spamming in the forums and blogs.

Spammers from aiseesoft.com:
221.222.167.249
221.218.190.92
221.218.188.80
221.218.190.92 gmail.com
221.218.190.92 gmail.com
221.218.188.80 gmail.com
221.218.188.80 gmail.com
125.33.166.70 gmail.com
125.33.172.139 gmail.com
125.33.170.96 gmail.com
221.218.188.48 gmail.com
221.221.10.204 gmail.com
114.246.158.55 gmail.com
58.251.87.74 yahoo.com
221.218.190.95