Update: Latest Retron Software Update may not work! Please use 2.2 thx :)
The App creates an IPS based on the rom you want to play and a generated blank file which is used as the base rom. This way you get all ROM data in the IPS patch and perfect compatibility (only limited by the Retron 5's limitations!)
If you need more help this guy made an awesome tutorial! props to him (twfdisturbed) :)
https://www.youtube.com/watch?v=ztyEsPErDvI&feature=youtu.be
Version Française (par: The Legend of Zouiguipopo) Merci beaucoup :):
https://www.youtube.com/watch?v=X8JM0xC9dW8
NEW:
Mediafire: http://www.mediafire.com/download/kwfhz5mznnz0mku/Retron5IPSCreatorv2.zip
OLD:
App Download:https://www.mediafire.com/?44ct18krcy1rf88
HOW TO:
1. Disable Fast Cart Loading under system settings (else press reset every time you load a new game)
2. Use the app to convert a singe rom or an entire directory of roms.
3. Copy the generated IPS files to a SD card and insert into the Retron 5.
4. Put a real cartridge in the drive thats the same system as the game you want to play.
5.Click game menu and select the IPS.
6. Press play game and Enjoy!
How to do this manually (with an IPS patcher) (Harder and more techy but explains how this program works):
1. Create a new text file and name it whatever.
2. Now open your IPS creator and click create IPS.
3. The base or unmodified file will be the blank text file and the modified file is the rom you want to play.
4.Done