Open DVDPROJ File
DVDPROJ files are associated with Apple's iDVD application, which is a part of Apple's iLife suite. iDVD is used for the creation of DVDs and includes templates for menu screens and adding clips and photos. In this context, DVDPROJ files are project files iDVD uses to save your progress as you design your DVD.
iDVD and DVDPROJ Files
DVDPROJ files are integral to the functionality of iDVD. They contain information about the project structure, the various multimedia files used, menu interfaces, along with various other settings. More details can be discovered by visiting Apple's official iDVD support page.
Opening/Using DVDPROJ Files
All you need to open and use DVDPROJ files is having iDVD installed on your Apple system. However, iDVD is no longer supported or installed by modern versions of macOS. To install iDVD on your modern Mac, you will need to find an old iLife DVD. More information about installing iDVD can be found at this Lifewire article.
Working with DVDPROJ Files on Windows
If you're a Windows user, things become a bit more complicated. DVDPROJ files are exclusive to iDVD and Apple systems, so there's no native software on Windows that can open them. A possible solution is to achieve this through an emulator like Parallels Desktop, which allows you to run macOS on your Windows PC. More about Parallels Desktop can be found on their official website. However, you will still need iDVD to work with the DVDPROJ files.
DVDPROJ File Important Information
When working with DVDPROJ files, it is vital to have clear copies of these files since they contain the entire configuration of your DVD projects. Losing them could mean losing substantial progress. Also, since iDVD is no longer supported, it's crucial to make sure you have a compatible system or an effective emulator. Last but not least, always remember to check the file extension. Similar-looking extensions may not necessarily work with the required software.