The Sleuth Kit and Autopsy Browser. Both are open source digital investigation tools (a.k.a. digital forensic tools) that run on Unix systems (such as Linux, OS X, FreeBSD, OpenBSD, and Solaris). They can be used to analyze NTFS, FAT, Ext2, Ext3, UFS1, and UFS2 file systems and several volume system types.
How to download/save/capture/record streaming Windows Media, Real Media, Real Video, Real Audio, Quick Time Videos (.asf, .wmv, .wma, .asx, .wmx, .wvx, .wax, .ra, .rm, .rmvb, .ram, .smil, .mp3) [rtsp, http or mms protocols].