What is a DDP Image?

DDP: Disc Description Protocol, also referred to as DDPi (DDP Image) or DDP File Set. An error-protected audio delivery format that has become the industry standard for reliable CD & DVD replication.

Think of it as a virtual image of a compact disc that can be easily transferred via the internet.

A CD plant will replicate discs from the exact same DDP image I deliver, so what you hear and see on the DDP is exactly what will be on your replicated CDs.

The DDP image is not a single file, but a folder. All files inside this folder belong to the DDP image and must always be used in this combination.

Additionally there is usually a MD5 checksum file. Using a checksum ensures that the single files of the image have not been modified or corrupted during transfer over the internet.

How Do I Play My DDP?

In order to play a DDP image in your computer a specialised player is required. Such a player is included Inside the DDP image folder I supply.

To play the DDP image simply double-click the appropriate player for your operating system and the player will launch and load the DDP.

IMPORTANT: The DDP player will only work with its enclosing DDP folder. Do not move the DDP player to another location.

From the DDP player you can:

  • Listen to the master like a virtual CD player on your computer
  • Burn a reference CD-R
  • Export each track as a 16-bit/44.1kHz WAV file or mp3

Distributing DDP Images

I deliver the DDP image as a compressed ZIP file. When sending the DDP image to the CD pressing plant you should use this original ZIP file.

This ensures that all files are received with the original subfolder structure. If the folder structure is modified, the plant may not be able to open the DDP image.

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