Copyright: © 2000-2003 by H+H Software GmbH
Citation: © 2000-2003 by H+H Software GmbH


Glossary
 – Glossary

ACM	The Audio Compression Manager from Windows manages your computer's compression modules for audio data.  The number and range of CODECs available depend on individual system configurations.
Audio CD	CDs with this format contain audio tracks only (no data tracks).
Audio track	The data stored on a CD is divided into tracks. On a music CD, the individual tracks are referred to as audio tracks.
CD-Extra	This CD format has two separate sessions, one containing audio tracks and one with data.
CDI	CD Interactive: this CD format is used for interactive content (such as videos).
CDDA	This stands for "CD Digital Audio", the format used for music CDs.
CDDB	This is a database service available through the Internet for automatic retrieval of information about music CDs, including artist name, album title and track titles.
CODEC	This is an abbreviation for COmpressor – DECompressor, and generally designates modular software programs that compress and expand data.  CODECs are linked in operating systems and exist for all types of data, including audio and video data.  Virtual CD uses audio CODECs for compressing audio data.
Image file	A Virtual CD 'container' contains one or more files (also called 'container files') which together make up a virtual CD. The container is created when you make a 1-to-1 image of a CD using the Virtual CD Image Wizard or when you compose a custom virtual CD using the Virtual CD Editor.  It is not to be confused with the symbol shown for a virtual CD in the VCD Management program, as this symbol is merely a visual representation of the container.
Data track	The data stored on a CD is divided into tracks. Tracks that contain data, as opposed to music, are referred to as data tracks.
Definition file	When you work with the Virtual CD Editor to create a custom CD, the definition file is where the Editor saves information about what is to be included on your new virtual CD.
Network view	Shows all of the virtual CDs that are available to all users for whom the same global configuration path is configured. This path is configured on the Network page of the Virtual CD Settings program.
Local view	Shows all of the virtual CDs that are available only on the computer you are working with.
Mixed-mode CD	Mixed Mode is a CD format that includes both a data track and a number of audio tracks.  This format is often used for games.
Session	In the structure of a CD, a session defines an area that contains a number of tracks. Some CD formats, such as CD-Extra, have more than one session; these are also referred to as multi-session CDs.
Single data track CD	This is the normal data CD format.
Virtual CD	The virtual CD symbols on the right-hand side of the Virtual CD Management program window represent the Virtual CD containers.
Virtual drive	Virtual CD creates a number of virtual drives for working with your container files.  These drives are represented as CD-ROM drives, but do not exist physically. Each drive requires one drive letter, which means you can have up to 22 virtual CD-ROM drives—26 letters minus A - D: , which are reserved for physical floppy disk, hard disk and CD-ROM drives.
Caching	With the Virtual CD Editor, you can create customized CDs with tracks from a number of different source CDs. To do this, the tracks selected from a physical CD are cached so that you can load the next physical source CD, and so on until you have collected all the tracks you wish to have in your custom virtual CD.


Troubleshooting Virtual Audio CDs
 – Troubleshooting Virtual Audio CDs

When you configure the settings for audio tracks, Virtual CD gives you the choice of writing the tracks as data files or as individual sound files.

Detecting which type of audio data you have on a given virtual CD:

If you have problems with a virtual audio CD, the first thing you need to do is determine which type of audio tracks are on the CD. The easiest way to do this is to check the CD in the Detail View of the Virtual CD Management program.

•	If the tracks are stored as individual sound files, the detail view shows a numbered list of the track titles.

•	If the tracks are stored as data files, the detail view shows a data track (of non-ISO format) for each audio track.

Problems playing audio tracks stored as data files (digital tracks):

Symptom: Once you insert the virtual audio CD in a virtual CD drive and the music player starts, the following error message is output by the Virtual CD Player (which passes the music to your CD player):

There are two possible solutions to the problem, depending on which CD player you use:

1. Some CD players cannot play virtual audio CDs as data files (i.e., play them digitally) unless the Enable digital CD audio for this CD-ROM device option is activated on the properties page.

	This example was generated on a computer running Window XP Professional. Please check the documentation for your operating system to find the settings for digital playback in CD drives.
	This setting is not available for all devices under Windows 98; it can be activated for a CD drive only in the Multimedia settings.

2. Some CD players have their own settings which overwrite the device settings of the CD drive. With the Media Player, for example, the Digital playback option on the CD Audio dialog page must be activated.

	Some CD players cannot directly read and play back audio data, regardless of their device settings. For these players, the virtual music CD must be made using individual sound files rather than data files.
Problems playing audio tracks stored as sound files (analog tracks):

Symptom: The music player apparently starts when you insert the virtual CD, but no sound is produced. There are two possible solutions to the problem, depending on which CD player you use:

1. Some CD players cannot play analog tracks unless the Enable digital CD audio for this CD-ROM device option is deactivated on the Properties page.

	This example was generated on a computer running Window XP Professional. Please check the documentation for your operating system to find the settings for digital playback in CD drives.
	This setting is not available for all devices under Windows 98; it can be activated for a CD drive only in the Multimedia settings.

2. Some CD players have their own settings which overwrite the device settings of the CD drive. With the Media Player, for example, the Digital playback option on the CD Audio dialog page must be deactivated.

Notes:

	Support for digital playback varies from one operating system to the next. In particular, it is not highly developed under Windows 98. For this reason, we recommend using sound files (analog recording) when making virtual audio CDs under Windows 98.
	We strongly advise you not to mix analog and digital files on a single virtual audio CD.
	The Windows Media Player resets the option for digital playback (deactivates it) automatically. Thus every time you want to play an audio CD with digital music tracks, you have to set this option again yourself.


Error Messages from the Image Writer
 – Error Messages from the Image Writer

	If the 'write' process for creating a virtual CD fails and an error message is output, make sure no other programs access the source CD or other required resources (such as the music player on the sound card) during the write process, and then try again. You may need to restart your system before the second attempt.

When the Image Writer is finished creating a new virtual CD, it shows a summary of the 'write' process before it closes. If an error occurred during writing, the stage at which the error occurred is shown in the summary in red. The error message includes the error code number.

The Image Writer error codes (EC) are listed below, with descriptions and possible solutions.

EC	Description
1	Cannot read defective sector. Activate the Bad sector correction option in the Image Wizard.
2	Cannot find source CD. The source CD from which the Image Wizard or Editor retrieved the CD data was not found by the Image Writer.  The source CDs must be inserted into a drive during the 'write' process.
3	Cannot read ToC (table of contents) of the source CD. Check whether the source CD is dirty; clean it if necessary. Otherwise, try placing the source CD in a different drive.
4	Cannot determine CD size. If Virtual CD cannot determine the data volume of a given CD or DVD, it cannot read the data contained on that disc.  Restart your computer and try again.
5	Cannot write the container file(s). Make sure there is enough disk space available on the hard drive.
6	Cannot open the source drive. Restart your computer and try again.
7	Cannot open a file required for creating the virtual CD. This can have either of two causes:   • You are trying to modify (overwrite) an existing CD, but that CD is currently inserted in a virtual drive. Make sure the virtual CD in question is not in use. • You do not have "write" permission in the target directory. Make sure you can create new files and write in files in the target directory.
8	Cannot create folder for the virtual CD. Make sure all the required permissions are granted for creating a folder.
9	Cannot read container (image file) header. Make sure the existing container file(s) can be read.
10	Cannot eject virtual CD. If you want to overwrite a virtual CD that is currently in a drive, it must be ejected.  Do this from the VCD Management program, and then try again.
11	Virtual CD is in use. The virtual CD you want to overwrite is currently in use.  Eject it from the virtual drive and then try again.
12	Error reading audio tracks digitally. Set the ACM compression mode in the Image Wizard and try reading the track as an analog file.
13	Error using ACM and analog readout. Analog readout of audio tracks is possible only if the drive is connected to a sound card.
14	Error creating a data track using the Editor. Make sure all of the data for the custom CD can be accessed and that there is enough space on the target drive.
15	Audio track stored temporarily by the Editor does not exist. Delete the audio tracks in the Editor and then add them again.
16	Cannot copy a file from buffer memory. Delete the audio tracks in the Editor and then add them again.
99	Image Writer cannot find the information required for creating the virtual CD. This usually happens only if the Image Writer is started directly; for example, by double-clicking on its program file in the Windows Explorer.  The Image Writer doesn't work when it is started directly; it must be started by the Virtual CD Image Wizard.  One way to create a new virtual CD, for example, is to open the Management program and select the Create virtual CD command.