Infra Recorder is a free CD/DVD burning solution for Microsoft Windows. It offers a wide range of powerful features; all through an easy to use application interface and Windows Explorer integration. This is the portable version which can be used on any portable drive.

Features
Create custom data, audio and mixed-mode projects and record them to physical discs as well as disc images.
Blank (erase) rewritable discs using four different methods.
Record disc images.
Fixate discs (write lead-out information to prevent further data from beeing added to the disc).
Scan the SCSI/IDE bus for devices and collect information about their capabilities.
Create disc copies, on the fly and using a temporary disc image.
Import session data from multi-session discs and add more sessions to them.
Display disc information.
Save audio and data tracks to files (.wav and .iso).