Mavericks isn't a huge leap forward in terms of features, but it sees Apple tweaking and introducing content related apps and services such as Maps and Notifications synchronizing across all Apple devices and iBooks now coming to OS X. Also going are the irritating and outdated interface elements such as leather/paper-style backgrounds. After you updated your operating system to Mac OS X 10.9, you would find many applications stop working. For people who gather lots of Blu-ray or DVD movies at home, it’s necessary to own Bytecopy for Mac. It's your best tool to rip and convert Blu-ray movies and DVDs to MP4 container format with multiple audio tracks and subtitles included. It also could rip and convert Blu-ray/DVD to any video format you like. Moreover, unlike most Blu-ray ripping software that can't work on Mac OS X 10.9, this Blu-ray ripping software compatibled well with the Mavericks. The following short guide shows you how to convert Blu-ray to mp4 on Mac (Latest Mac OS X Mavericks included)with original video, audio and subtitles. Software Download: Pavtube Mavericks Blu-ray Ripper Step 1. Run Pavtube ByteCopy for Mac software, put source Blu-ray/DVD into ROM, Click “Load Disc” to import movie titles from Blu-ray/DVD. The software decrypts Blu-ray/DVDs of all regions. Step 2. Choose MP4 format as output, here “Format > Multi-track Video > Multi-track MP4 (*.mp4)” is recomended for you. Note: If you want to combine multiple mp4 files into one, please check the "Merge into one file" option. Step 3. Click the “Convert” button to copy Blu-ray/DVD movie to mp4 on Mac with original video, audio and mutiple subtitles. The process takes about 10mins. When it completes, click “Browse Export Path” to find generated mp4 file with Dolby Digital 5.1 audio and multiple subtitles included. The Mac Blu-ray/DVD to mp4 converter is really easy to use. Hope it also works well for you.