Games are usually distributed in a number of RAR-archives (compressed files). This has been done to facilitate the actual download of the release. You only need to extract the first file in the sequence (usually named game.rar or game.r001/.001) and the rest of the files will be uncompressed automatically. If you need step-by-step instructions on how to extract RAR archives, see Hursty's WinRAR Guide. When the files have been extracted (uncompressed), a CD/DVD image file will be produced. The CD/DVD image is an exact digital replica of a CD/DVD, whereby all of the data is stored in one file to completely preserve the data structure and integrity of the CD/DVD. Some common disk image formats include: .BIN/.CUE, .IMG, .NRG, .MDF/.MDS, .CCD, and .IMG. These disk images can be burned using software such as Nero, Alcohol 120%, DVD Decrypter, and ImgBurn. See the sticky threads at the top of the PS2 DVD Backup forum if you need help in using these programs.
Extracting RAR files w/ WinRAR (http://www.rarlab.com)
1. Right-click on first file in the sequence (ie. game.rar, game.part01.rar, game.r00, or game.001). From the right-click context menu, select WinRAR->Extract OR Extract to game\.
NOTE: If the file has an extension of *.001 you will need to add it to WinRAR's user defined archive extensions so you can extract the files via the right-click context menu. To do this, open WinRAR->Options->Settings->Integration->Add .001 to the 'User defined archive extensions' box.
Burning PS2 DVD Images w/ DVD Decrypter (http://www.dvddecrypter.org.uk)
1. Insert quality blank DVD into drive
2. Open DVD Decrypter 3. Mode->ISO->Write
4. Browse to image file
5. Set Write Speed to 4x OR half the speed of the disc (16x -> 8x)
6. Click on Hard Drive->DVD picture to begin burning