Erasing/Initialising a single CD-RW, Scms, Erase

Advanced Features & Operation

Erasing/Initialising a single CD-RW

Insert the CD-RW into a drive, and if necessary, select the drive with the DRIVE SELECT button. When the drive has completed the reading process and the track information is displayed, press the ERASE button. The display will change to

Erase nn-nn(where nn is the total number of tracks on the disc).

This first erase option is to erase only the last track on the disc. The remaining erase options may be viewed by rotating the AMS control clockwise, one click at a time. Each click decrements the first of the two numbers by one. Thus if there are 5 tracks on the disc, the initial display will be:

Erase 05-05

and then, in turn:

Erase 04-05,Erase 03-05,Erase 02-05,Erase Disc, Init Disc

(after which Erase 05-05is displayed again.)

Erase Disc means that all the tracks on the disc will be erased; Init Disc means that the disc will be completely re-initialised.

When the required selection of tracks to be erased, or the full erasure option is displayed, the erase process is initiated by pressing ENTER (the AMS control). Alternatively, the erase function may be aborted by pressing ERASE a second time.

As erasure commences, the display will show:

Erase 0%

and the percentage indication will then show the progress. As stated above, initialisation is a much slower process than track erasure. After erasure/initialisation is complete, the drive returns to STOP, and the number of tracks remaining is confirmed by the display.

Erasing/Initialising two CD-RWs

If both drives contain CD-RWs, the user has the option to erase selected tracks from in each in turn as described above, switching between drives with DRIVE SELECT. However, the range of erase options offered is extended to include erasing or initialising on both drives simultaneously.

Rotating the AMS control one click clockwise past Init Disc will offer the options

Erase Discs

followed by

Init Discs

Selecting one of these options (by pressing ENTER) will initiate erasure or initialisation on discs in both drives simultaneously.

SCMS

The SCMS (Serial Copy Management System) was developed to restrict the number of copies which could be made from a digital recording via the digital domain. The system has been incorporated into all consumer digital audio equipment for many years. With commercially-produced CDs, it limits the number of copies which can be made by using an S/PDIF interconnection to one.

In the simplest terms, SCMS functions by setting certain bits in the digital bitstream. These are inspected by an SCMS- equipped recorder and a recording is only permitted if the “first- generation-only” criterion is met.

The restrictions imposed by SCMS are generally too limiting for professional use. As a professional product, the CDR-882 provides full control over SCMS operation in two ways.

Firstly, the digital input bitstream is not checked for copy protection bit validity. The CDR-882 will record from any digital source. This applies to all digital inputs.

Secondly, the copy protection bits can be set as required for the discs being recorded. This setting is made via the Record submenu of the menu system, at the SCMS option. Three settings are available: Prohibit Copies, Copy Once and Permit Copies, corresponding to none, one or unlimited copies respectively. (See page 35 for full details.)

Discs recorded in the CDR-882 subsequently played on consumer CD players will cause the copy protection bits at the S/PDIF outputs of those players to be set according to how the SCMS menu setting on the CDR-882 was set at the time the discs were recorded. The source of the programme material at the time of recording is of no relevance; this includes discs recorded using the CDR-882’s high-speed DISC COPY function.

The CDR-882 is SCMS-compliant in playback; the SCMS bits in the digital outputs are set only according to the copy protection status of the disc being played.

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CDR-882 User Manual Version 1.0