CD (DVD) analysis tool and tester.

• Disc type (Data, Audio, Mixed or DVD),
• File System (ISO/Joliet/UDF) placed on the disc by CD/DVD mastering software or standalone device,
• Lost tracks (sessions) that are invisible for Windows "standard" tools,
• The number of sessions written on the disc and what information each session contains (size, creation date, what program created the session, publisher information and many other details),
• The number of audio tracks written on Audio or Mixed CD and the size of each track (in bytes and MSF format).

Further, CDRoller scans images have been created before, in order to find the image that is the "mirror" of inserted disc, and then builds own "directories tree" with short cuts to each folder on the disc. In addition, CD/DVD drive is also examined, in order to get its properties and capabilities.

If you need to check whether your disc is damaged or not and also get advanced Volume Info - you should only run the disc test. The tester reads the system area, it can also determine whether each folder and file is readable or not, and finally, the tester may scan disc surface partly or entirely, reading the blocks of sectors on your CD or DVD. For audio and mixed discs the Digital Audio Extraction Quality measures how well audio tracks can be extracted. To select an appropriate mode, you should only change the options available in the Preferences dialog.

• if your DVD was created by Nero Burning ROM (Nero Express).
• if your CD with photos was burnt from memory cards.