What is CDFS?

[labman]

i heard this word in my college many times. Can anyone tell me what for CDFS stands and what is that actually?

[aalbaiz]

CDFS stands for "Compact Disk File System" or in short "CD File System". It s the Windows driver for CD-ROM players in windows and in and in Linux systems, it is a file system that exports all tracks and boot images on a CD as normal files..

In windows 2000 CDFS, or CD-ROM File System, is a relatively simple format defined in 1988 as the read-only formatting standard for CD-ROM media. Windows 2000 implements ISO 9660-compliant CDFS in WinntSystem32DriversCdfs.sys, with long file name support defined by Level 2 of the ISO 9660 standard.

[Anand D.]

CDFS replaces MSCDEX that was used for MS-DOS and is a 32-bit program that runs in protected mode.

In addition, CDFS uses a VCACHE driver to control the CD-ROM disk cache allowing for a smoother play back.

The Windows XP Professional Compact Disc File System (CDFS) can read Compact Discs (CDs) formatted according to the ISO 9660 file system standard. The ISO 9660 specification defines three methods, or interchange levels, for recording and naming files on a CD. Windows XP Professional supports up to interchange level 3.

Windows XP Professional also supports Joliet, an extension to ISO 9660, which supports CDs that are recorded using file names containing Unicode characters.

[Fullorton]

Remember, Windows MUST correctly identify the Controller to correctly identify CD Devices on said Controller.


1. msdn.microsoft.com - Types of Windows Drivers: Types of Kernel-Mode Drivers - CDFS File System Drivers (FSDs). File System Drivers include FAT, NTFS & CDFS.


2. An alternate CDFS.VXD CD Driver on Win9x to show Audio CD’s as WAV files IN THE FILE SYSTEM! This replacement driver shows WAV files in a variety of qualities. It works on any CD drive that Win9X supports. Rename the old CDFS.VXD to CDFS.old for archive purposes. From cyber7.
3. UDF: (Universal Disk Format) - A File System for Optical Media Storage developed by the Optical Storage Technology Association (OSTA).