Opening DAA & UIF files on Mac

.daa - Direct-Access-Archive file. This is a proprietary CD/DVD image file format from PowerISO file. It supports features such as compression, password protection and splitting across multiple volumes.

.uif - Universal Image Format or UIF is a proprietary disc image format for CDs and DVDs that uses compression created by MagicISO Inc.

Both .daa and .uif are unsupported by Mac OS X out of the box. However, you can convert them to .iso which then can be mounted and used.

Here are a couple of tools which might do the trick:
DAA Converter for OS X
UIF2ISO for Mac