Revolutionary mp3PRO technology lets you create files that are more compact than MP3s, but with the same or better sound quality, whilst ensuring complete compatibility with MP3 players.

The Nero Gracenote Plug-in puts you in full control of your music library with advanced song and audio CD information such as titles, album name, and track number, plus album art for over 80 million songs on 6 million CDs!

Nero RescueAgent helps you to recover files from damaged or partially-unreadable media and to restore files that were accidentally deleted.

Disc format defines the the format in which the data is organized on a disc. For example, the disc format DVD-VR is only supported by and can only be used with DVD-RW and DVD-RAM discs. For example, Video CD (VCD), Super Video CD (SVCD), miniDVD and (if supported) HD-BURN can be burned to CD-R and CD-RW disc formats. The technical optionsavailable, such as subtitle or multiple sound tracks, are a factor of the disc format.

The Universal Disc Format is a platform-independent file system. File names can be up to 255 characters long; 8 and 16 bit character sets are supported.

A multisession disc can contain several sessions that are not fixed. This way, more data can be added in new sessions at a later point in time, and the disc is not closed until it is full.

The International Organization for Standardization defined the Universal Standard 9660 which determines the features of the CD. This format is platform-independent and can thus be read by computers with different operating systems. In order to ensure universal readability, the file names used should be as short as possible. (In a DOS environment no more than eight characters may be used).

Ripping refers to the process of extracting audio or video data from an optical storage medium onto a computer's hard drive in order to process it.

Packet-writing refers to a procedure for writing to optical media incrementally. An optical medium, e.g. a DVD, can be used as a hard drive as a result. This way, files can be copied, moved, changed, or erased on the respective optical medium.

Disc-At-Once refers to a method in which the laser in your recorder burns straight through in one session without turning off and on between each track. This method is best when recording Audio CDs you would like to play on your home or car stereo.

The leadout is the ending area of user data on a data carrier that is used to close a session. If the disc has not been completed yet, the reference for the next session is stored here.

Parity of inner code is part of the structure of a DVD's data block, and is used for error correction purposes. If a PI in a DVD cannot be read, one speaks of a PI error.

The parity of outer code is part of the structure of the data block of a DVD and is used for error correction purposes. If a PO on a DVD cannot be read, one speaks of a PO error.

The write speed indicates the speed at which a drive can write data to the optical storage medium, e.g. 8x or 16x speed.

Discs can be read and/or burned in different ways. As a general rule, the reading process in optical drives starts at the radius of the disc and moves from the center outwards. The two standards used to define the types of rotational speed are linear velocity and angular velocity. With constant angular velocity, the tracks at the center of the disc always travel at the slowest linear velocity. The linear velocity increases as you move away from the center towards the outer edge. Angular velocity (also called rotational speed) describes the change in the rotation angle over time independently of the radius of the disc, i.e. the velocity at which an object loops a sector.

A sector is the smallest addressable information unit on a CD-ROM. A sector is composed of 2,352 bytes, of which - depending on the type of CD used - different amounts are available as user data. A sector generally consists of a header, synchronization bits and user data. It may also have error recognition and correction data.

The Video Compact Disc saves movies and audio/video data in MPEG-1 format. In doing so, the video quality from a VCD is similar to a VHS video. VCDs can store up to 74 minutes of video material including stereo sound on a 650MB disc. Most optical PC drives and DVD players can play VCDs.

Compact Disc-ReWritable is a technology for rewritable media.

The read speed of a drive is a factor of the speed that the laser needs in order to read the data on an optical storage medium, e.g. 8x or 16x speed.

A Compact Disc-Read Only Memory contains various computer-readable types of data, such as programs, image data and audio data, that can be stored in this format. The Yellow Book standard defines the recording method, according to which each sector must be individually addressable.

A block refers to the smallest information on a CD-ROM or hard drive that is addressable in one access and that is indicated in bits or bytes. Several blocks are combined into a sector.

The lead-in is the starting area (innermost area) of user data on a data carrier. This is where the table of contents and additional information concerning the disc is stored.

A Super Video CD, abbreviated SVCD, is a CD format for movie files that uses the MPEG-2
video code to save. As a result, this disc format saves video files in a quality similar to an SVHS
video and can save up to 30 or 40 minutes of video with stereo sound on a 650 or 700
MB CD. SVCDs can be played back on an increasing number of DVD players and on the
PC, if your PC has the appropriate software and a drive that can read CD-R/RW discs.

A Bridge Disc is a variant of a CD-ROM that can be read from CD drives but also from CD-I devices such as a Photo CD for example. It is defined in the White Book Standard and contains extra information in an XA (Standard Architecture) track on the CD-ROM.

Compact Disc-Recordable is a technology for write-once media. The Orange Book standard defines the storage of audio data and other computer-readable data.