For most Apple users, it’s common to own multiple Apple IDs since one single Apple ID is permitted to be tied with 5 computers only. But what if you need to merge your Apple IDs into one account or transfer your iTunes movie rentals or purchases from one account to the other? It sounds impossible since Apple doesn't provide this kind of service for the users in order to prevent the iTunes content from being shared. The good news is you still get chance to transfer your iTunes videos to another Apple account with ease.
Firstly, you need to beware of the fact that all movies, TV shows and music videos purchased or rented from iTunes Store are protected by Apple’s FairPlay DRM policy which prevents users copying contents from others or sharing contents to others. So if you want to transfer iTunes movie rentals and purchases to another Apple ID, you need remove the DRM protection from those videos with a third-party iTunes DRM removal tool.
TunesKit iTunes DRM Video Converterfor Mac is such a smart DRM cracker which can not only bypass FairPlay DRM from both iTunes video purchases and rentals, but also convert the DRM protected iTunes movies to DRM-free MP4 format so as to enable you move all your files from iTunes library to another account freely.
Steps to Transfer iTunes Movie Rentals and Purchases to Another Apple ID
Step 1. Add purchased or rented iTunes movies from one Apple account by clicking "Add Files" button or directly dragging and dropping the files.
Step 2. Choose audio tracks and subtitles for output videos.
Step 3. Click "Convert" button to start converting DRM iTunes movies to MP4.
Step 4. Log in your iTunes account and import the DRM-free iTunes videos to it.
For more info, please visit the source page: http://www.tuneskit.com/reviews/transfer-itunes-movies-to-another-account.html