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If you've ever encountered a CD or DVD image that you just couldn't convert -- except with paid software -- DVD-Ranger's ISO Buddy (http://www.dvd-ranger.com/prod_isobuddy.asp) is a free tool you'll want to check out.
It's a disc image conversion and burning program, and it supports more formats than you can shake a spindle at. Apart from more run-of-the-mill formats like Nero's .NRG, .BIN, and .ISO files, ISOBuddy can also handle images created by apps such as Alcohol 120%, CloneCD, DiscJuggler (Dreamcast flashaback... ), and even older Blindwrite files. You can convert from one format to another or burn any supported format to a disc.
As if that's not enough, it can even convert Mac's .DMG format. That's an awesome bonus for me, since there have been a couple occasions where I've been without Mac hardware and needed to get at the contents of a .DMG for a customer. You can convert from one format to another or burn any supported format to a disc.
ISOBuddy (http://www.dvd-ranger.com/prod_isobuddy.asp) is a free download, and it ran nicely on both my 32 and 64-bit Windows 7 systems.
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