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The Exchange Mastering Studios
1. How do I enquire about prices or make a Booking?
The best way to contact us is to phone on 0044 (0) 20 8399 0718 or by e-mail: studio@exchangemastering.co.uk and you will receive immediate information on pricing and engineer availability.

2. What are ISRC Codes and where do I obtain them?
The ISRC (International Standard Recording Code) 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. Encoded ISRC provide the means to automatically identify recordings for royalty payments. www.ppluk.com | www.ifpi.org

3. How do I send my tracks to you to be mastered?
If you have an FTP server send us the login details and we can download your files from there. Alternatively we can set up an account on our server and send you the details. You can also send the tracks to us via www.sendspace.com If using this method use studio@exchangemastering.co.uk as the recipient. Other formats we accept are ½" and ¼" tape, audio CD, DVD, hard drives, cassette and mini-disc. If you would like us to work from any of these formats then they will need to couriered to us at the address below.

4. My audio is ready to send for mastering, what should I do and what other information do you
need?
We now and again have have short notice cancellations which means we can sometimes fit you in straight away, depending on the amount of work. We always advise sending the audio asap in case we have time available.

5. What is the maximum amount of audio I can fit on a cd?
A CD album should be no more than 79 minutes and 58 seconds.

6. What's the most you can fit on a side of vinyl?
It always depends on musical content, for instance, a bass heavy track will take up more space on a disc than a recording of a string quartet, but here are some general guidelines: See table.

Format Loud Level Average Level
7" 45rpm For Up to 3 ½ minutes Up to 4 ½ Minutes
10" 33rpm Up to 7 Minutes Up to 9 Minutes
10" 45rpm Up to 5 ½ MinutesUp to 7 Minutes
12" 33rpmUp to 13 Minutes Up to 15 Minutes
12" 45rpm Up to 7 ½ Minutes Up to 9 Minutes
Album Up to 19 Minutes Up to 22 ½ Minutes
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Website: Karen Thompson