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ImgBurn is a lightweight CD / DVD / HD DVD / Blu-ray burning application that everyone should have in their toolkit!

It has several 'Modes', each one for performing a different task:

Read - Read a disc to an image file 
Build - Create an image file from files on your computer or network - or you can write the files directly to a disc 
Write - Write an image file to a disc 
Verify - Check a disc is 100% readable. Optionally, you can also have ImgBurn compare it against a given image file to ensure the actual data is correct 
Discovery - Put your drive / media to the test! Used in combination with DVDInfoPro, you can check the quality of the burns your drive is producing 

ImgBurn supports a wide range of image file formats - including BIN, CUE, DI, DVD, GI, IMG, ISO, MDS, NRG and PDI.

It can burn Audio CD's from any file type supported via DirectShow / ACM - including AAC, APE, FLAC, M4A, MP3, MP4, MPC, OGG, PCM, WAV, WMA and WV.

You can use it to build DVD Video discs (from a VIDEO_TS folder), HD DVD Video discs (from a HVDVD_TS folder) and Blu-ray Video discs (from a BDAV / BDMV folder) with ease.

It supports Unicode folder/file names, so you shouldn't run in to any problems if you're using an international character set.

ImgBurn supports all the Windows OS's - Windows 95, 98, Me, NT4, 2000, XP, 2003, Vista and 2008 (including all the 64-bit versions). If you use Wine, it should also run on Linux and other x86-based Unixes.

It's a very flexible application with several advanced features that are often lacking in other tools, especially when it comes to burning DVD Video discs. It supports all the latest drives without the need for updates (including booktype / bitsetting / advanced settings on many of the major ones - i.e. BenQ, LiteOn, LG, NEC, Plextor, Samsung, Sony).

There is an image queue system for when you're burning several images (which you can automatically share between multiple drives if you have more than one) and an easy-to-use layer break selection screen for double layer DVD Video jobs. The Automatic Write Speed feature allows you store your favourite burn speed settings on a per 'Media ID' basis, right down to a drive by drive level. Data captured during the burn (write speed, buffer levels etc) can be displayed / analysed using DVDInfoPro.

Whilst ImgBurn is designed to work perfectly straight out of the box, advanced users will appreciate just how configurable it is.

Oh and let's not forget the best thing about it.... it's 100% FREE ;-)

First and foremost, ImgBurn is a freeware tool. You cannot bundle it with your own commercial application and you cannot sell it in any way, shape or form. 

As an individual, you're allowed to use it anywhere you like - be it at home or at work (assuming they don't mind of course!).