Preparing CDs for Replication
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All disks
It’s best to close the disk after writing, and if the option is available, "Close all sessions" as well.
- Best results are with masters submitted on non re-writable media. Masters written on re-writable drives can also be problematic.
- Soft China (wax) markers, or pens made for writing on media, are best for identifying your master. Writing on media with other products can affect error rates.
- Please submit two copies of your master if possible, so that after analysis we may copy from the lowest error rate of the two.
File naming
- It’s best to adhere strictly to the rule of 8.3, keeping all file names to no more than 8 characters, followed by a period and optional 1-3 character extension. Windows optional "long file names" are incompatible with ISO.
- Use only UPPERCASE letters, numbers and the underscore character in file names to adhere to ISO intersystem compatibility
- Name folders in UPPERCASE only with no more than 11 characters
- There can be no spaces in file names
- Only put necessary files in the root directory of your CD; organize all other files into folders
- Do not set file attributes to Hidden or System unless required by an application
- Avoid system specific volume names, and stick with ISO volume name prompting set by your writer program
- ZIP, Bernoulli, JAZZ, SyQuest and other methods of delivery will necessitate a mastering prep charge
Audio - CD-DA format
- Always write audio masters for copying at no more than 2X rate, since CD-DA does not have an inherent ECC function
- Write your master CD in "Disk At Once mode" (DAO) if possible
- Programs such as Easy CD & GEAR Audio write a session for each cut. This is the origin of the enforced 2 second silence between tracks when using programs of this type
- Programs known to do DAO are TOAST (for MAC). For PC, EASY-CD PRO, CD-Architect, Red-Roaster, and Ignition from Nero soft are known to produce correct DAO masters
- Use a SCSI drive, since very few IDE writers correctly support D.A.O.
- Unless submitting a CD-XA, "Extra mode" master, do not allow any open sessions on the master
Audio not submitted as Master CD
- DAT master at 44.1 sample rate
- First audio at 01:00; never record program before the first minute mark
- DATS at 48 khz or 32 khz, cassettes, reel to reel etc. require mastering to CD & extra charge
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