Digiarty Software +

BitsDuJour offers downloads of MacX DVD Ripper Pro for Mac for free. (You will need to provide your email address to get the license code). That's $35 off.

IMO quite a good software; was using the earlier version but new revamped version looks really good, supports many phones and tablets, was using earlier version v.6.9.2!

WinX DVD Ripper is being offered free again. I've used this for a little while and it seems to do a pretty good job of backing up DVDs.

Also available is WinX DVD to iPad Ripper for Mac (see link)

MacX DVD Ripper Pro Streamer Edition

I came across this promotion from howgeek website. License code for Mac version: BD-TDUXUPYV-JNHJRT License code for Windows version: BN-UPUGUWTJ-IIRNHQ

Not sure if this is any good, but it's free, so it's a start!

*NOTE REGISTRATION CODE DIFFERNT FOR WINDOWS*** REGISTRATION CODE WINDOWS WINXRP-9709-9584-8547 MAC BD-TGTXUVYO-OONQRP THIS IS FREE, BUT I DON'T KNOW THE QUALITY OF THIS Rip protected DVDs to iPhone, …

From the site: WinX DVD Author is powerful DVD movie creator and DVD burning software to make DVD from various video formats, like AVI, MOV, MPEG, WMV, FLV, etc. With this DVD authoring software, it …

WinX DVD Ripper Rip DVD to popular video formats as AVI, FLV, WMV, MPEG, MP4, MOV, etc. Extract DVD audio into MP3 music file. Support grabbing screenshot from DVD video Easy video splitting, fully …