FAQs Answered!

How do I enquire about prices or make a booking?

The best way is to contact us via telephone on +44 (0)20 8399 0718 or by email to studio@mikemarshmastering.co.uk and you'll receive immediate information on studio pricing and availability.


Click here for information about bookings

What are ISRC codes and, how do I register for them?

The International Standard Recording Code (ISRC) is the international identification system for sound recordings and music video recordings. Each ISRC is a unique and permanent identifier for a specific recording which can be permanently encoded into a product as its digital fingerprint. The ISRC provides the means to automatically identify recordings for royalty payments and, in many territories, is increasingly becoming a tool in the fight against piracy.

By identifying all sound and music video recordings that are released, regardless of the format that they are released in, the ISRC enables the tracking and tracing of these recordings through the music value chain.


You need to register yourself for ISRC codes and all the information you require can be found by following these links.


UK and Overseas Clients
UK Clients
US Clients
Australian Clients


You can download a PDF file about ISRC codes here

How do I send my tracks to you to be mastered?

If you're sending us physical masters, such as tape, data discs, hard discs, you can send them direct to the studio address. If you're sending digital files over the internet and have an FTP server you can send us the login details and we can download the files direct from you. Alternatively, you can also use file transfer services like SendSpace, WeTransfer, Hightail or Dropbox.


If you use these services, please use studio@mikemarshmastering.co.uk as the recipient.

What is the maximum amount of audio possible to fit on a compact disc?

A CD cannot exceed 79 minutes and 58 seconds. However, it must be noted that CDs with a running time in excess of 76 minutes are much more prone to errors and skipping as the music towards the end of the CD is travelling further towards the outside edge of the disc where errors and instability are more likely.

What is the maximum amount of music you can fit on one side of vinyl?

Please take a look at the Vinyl section of our services page where you will find a detailed chart on suggested maximum vinyl running times.

Are the studio rates higher for attended sessions?

We make no additional charges for attended sessions


I've got more questions!

Then please give us a ring on +44 (0)20 8399 0718 or email at studio@mikemarshmastering.co.uk and we'll do our best to answer them!