Frequently Asked Questions



Audio requirements (CDs)



The technical parameters of the pieces for the making of the “CD-Audio” format have to match the requirements of the “red book” standard. If the pieces provided don't match these requirements, they will be modified during the premastering step, or declined for non-compliance if is impossible to correct them.

Channels : 
Standard requirements : 2 channels (stereo)
A Mono recorded piece will be converted into stereo mode in the left and right channel. Those multitrack recordings can be encoded with the Dolby Surround technology (Pro Logic I or II) or stereo mixed.

Sample Rate 
44,1kHz standard requirements
Pieces with a sample rate of 32, 48, 88, 2, 96 and 192 kHz will be numerically resampled.

Bit Depth
16 bit standard requirements
It is possible to provide recordings up to 32 bit resolution. During the transfer, anything above 16 bits will be used. Optionally, it is also possible to use algorithms that will contain the information below 16 bits when converting.

Preemphasis : 
The preemphasis can't be modified within the same track.
When the preemphasis between two following tracks is different, the break between them has to last at least 2 seconds.


Program Length : 
The maximum program length for an Audio CD is 79 minutes and 54 seconds.


ISRC Codes :

ISRC Codes can be recorded on the Master functional optical disk, or in the DDP datas, in the picture disk, or in your technical documentation provided (tracklist)


Bit reduction : 
Si le support d'entrée fourni est réalisé à partir d'un enregistrement à plusieurs bits utilisant un algorithme de réduction des bits (par ex. SBM, UV22, HDCD etc.), il est nécessaire de le stipuler dans la documentation. Cette obligation est définie dans les conditions de licence pour l'algorithme HDCD.

Recording Level : 
The numerical level of the input piece will be transferred on the CD as is (the bits on the CD recording will match the model) unless requested by the customer.

PQ Encoding limits, offsets : 
Track maximum : 99
Index maximum on one track : 99 
Minimum length for a track (without taking into account the breaks between the tracks) 
Offset PQ before the first track : 50 frames recommended
Offset PQ at the beginning of the second track and all of the other tracks : 25 frames recommended
Offset PQ at the end of every track : 12 frames recommended
Offset PQ after the last track : 75 frames recommended
1 second = 75 frames



The master is usable as is for the record pressing. The studio will only quick check the master, and will, if necessary, modify it so it matches the standards and the Philips/Sony recommendations.

Audio CD Master :
Pressed or burnt optical disk: Fully functional pressed or burnt disk in the required CD format. We do not accept the shaped CDs, business cards, etc.

DDP Format (Disk Description Protocol) :
Disk Description Protocol is a worldwide standard for handing-over the
source data for production of optical disks supported by all manufacturers of equipment for
CD and DVD mastering, as well as by manufacturers of professional workstations for
processing of audio or DVD authoring.

  • For CD formats (except CD-Extra and Enhanced CD) we recommend the version 1.00. We also accept the version 2.00.
  • If your authoring software supports it, choose in the setting up the option for storage of audio tracks in one file.

CMF (Cutting Master Format):
It is similar to DDP. CMF is transferable to DDP. If your workstation supports both DDP and CMF, select the option DDP.

Files with CD image : 
Files, which can be used without any adjustments for the CD master burning.

  • Recommended formats : 
    • NRG (Nero) 
    • BIN/CUE/CDT (CDRWin, Toast, etc.)
  • Dejected formats : 
    • C2D (WinOnCD) 
    • CIF (Easy CD Creator) 
    • CCD/IMG/SUB (Clone CD) 
    • CDI (DiscJuggler) 
    • IBP/IBQ (IsoBuster) 
    • MDF/MDS (Alcohol 120%) 
    • BWT/BWI, B5T/B5I, B6T/B6I (BlindWrite) 
    • TOAST, CDR (Toast, Apple Disk Utils) 
    • UIF (MagicISO)

Instructions for burning the CD-R(W) : 
• Use only high quality media from a major brand, preferably the higher versions from the relevant manufacturer. 
• Use lower recording speeds, maximally 16x (according to the possibilities of the driving mechanism). At higher recording speeds there will occur the step change of burning speed and operation of laser (zone burning). Thereby the readability of disk is worsened. 
• Not cover the CD with paper tapes or other self-adhesive tapes; however it is possible to use the technologies for burning of graphic information on the side of disk labeling (LightScribe, etc.). 
• Describe the medium only on the labeling side, and only with a felt tip marker intended for that use. Common felt tip markers are not suitable. Using hard-core pencils and ballpoints will damage the medium. 
• We recommend test-listening of the recording in the desk player prior to sending it to the production, and also checking the correct display of CD–Text, if required. 



Limited responsibility

If the master is damaged or lost, 100vinyl will be held liable up to the amount of the purchase price of a new media, not worth the price of the media content.

Physical medias have to be entirely legible. If the provided media contains unrecoverable errors, the order process will be stopped. The customer will have to provide a new media.

The particular carriers must be unambiguously identifiable in accordance with the supplied documentation and order (catalogue number, customer). The description must also contain the format of data, which are stored on the carrier (for example CD Audio master, DDP master or WAV files). The description must appear both on the cover and on the medium itself. However, it must not prevent its error-free reading (self-adhesive labels and stickers, description of CD media using a hard-core pens, etc.).

TIPS : For the production, please always send a copy of your original master. We recommend sending 2 identical copies clearly identified as master and backup copy. We will use the backup copy in order to minimize the risk of delays that could occur in case of master readability failure, in which case the material would need to be sent again.