Clam Win Portable

ClamWin Portable is the popular ClamWin antivirus packaged as a portable app, so you can take your antivirus with you to scan files on the go. You can place it on your USB flash drive, iPod, portable hard drive or a CD and use it on any computer, without leaving any personal information behind.

http://portableapps.com/apps/utilities/clamwin_portable

Dvd Builder

DVDBuilder is designed to convert your mpeg file to DVD. You can use this software to create a DVD from your digital video recorder, Webcam, or downloaded file. DVDBuilder is a powerful, splendid and simple to use application for MPEG file to DVD video converting.

http://www.keronsoft.com/dvdbuilder.html