Cannot transfer movies and music from pc to mini ipad

It's easy. There takes transferring music as an instance. Just follow the below steps.

Step 1 Start Leawo iTransfer

Connect old iPad to computer via USB cable. Start Leawo iTransfer on your computer. The software will automatically recognize your device and shows iPad library in the left sidebar.
Step 2 Select music to transfer

Click the name of iPhone and go to "LIBRARY > Music" in the left sidebar and select multiple songs in the right interface by holding "Ctrl". Right click them to choose "Transfer to > My Computer".
Step 3 Transfer music from iPad to computer

In the pop-up window, chose "Save to folder" and click on "Change" to select an output directory on your computer. After that, choose "Transfer Now" to transfer music from iPad to your computer.
Step 4 Transfer music from old iPad to new iPad

Disconnect iPad but connect new iPad to your computer. Go to "iPad > LIBRARY > Music" in the left sidebar. Choose "File > Add > Add File or Add Folder" in the top middle to upload music you just transferred from old iPad to your new iPad.

For more details, check: How to Transfer Music from iPad to iPad

You can manage files on your iPad mini with this iTransfer tool. It also helps you add/remove files like books, movies, photos, etc.
Transfer Files among iOS Devices iTunes and PCs with Ease

Try downloading an app called Shareit.
When attached to the same WiFi, you can transfer Photos directly from iPad to iPad and even between Windows and Andriod devices. You start Shareit on both devices and send from one and receive on the other.

The best way is to use a transfer tool, this one works well:

How to Transfer Movies from iPad to PC Mac Windows 7 8

Use blu ray ripper: http://www.bdconverter.com/blu-ray-ripper/
The guide: http://www.bdconverter.com/tips-on-ripping-blu-ray-to-ipad-mini-for-playback/

Here is a guide on how to convert DVD to iPad mini videos with the help of a DVD to iPad mini converter.

Hope it will help.

Follow the steps to transfer pics from your computer to your iPad:
Step 1: Connect your iPad to your computer using the USB data cable that came with your iPad.
Download Install and run iTunes and select your iPad device from left panel under "Devices" section.
Step 2: Click on Photos tab, Check the "Sync Photos from" checkbox and select "Choose Folder..." option from drop-down menu. Locate the folder with the photos you want to transfer on your computer and hit "Select Folder" button.
Step 3: When folder listed in iTunes, select all pictures that you want to copy to your iPad and hit Sync/Apply button from bottom right corner.

I recommend you a professional software, which can help you transfer documents from computer to iPad. Then you can enjoy the files on your iPad freely. iPad to PC Transfer is a professional sofeware, which can help you transfer Music, Movie, Photo, ePub, PDF, Audiobook, Podcast and TV Show from iPad to PC or iTunes library.
If you have a Mac, you can use iPad to Mac Transfer

You can use iPad to PC Transfer, which can help you transfer from iPad to PC. iPad to PC Transfer is a professional sofeware, which can help you transfer Music, Movie, Photo, ePub, PDF, Audiobook, Podcast and TV Show from iPad to PC or iTunes library.