Recording categories for clients

I added the following content to my services page:

WHEN REQUESTING A QUOTE FOR TRANSCRIPTION PLEASE INDICATE TO THE BEST OF YOUR ABILITY WHICH OF THE FOLLOWING YOUR AUDIO FALLS INTO (if you are unable to we will make this assessment for you)
Category A:
Clear speech
No background noise – recorded digitally in a quiet surroundings
A cleaned up verbatim transcript is provided unless specifically stated that strictly verbatim is required.
Category B:

Group discussions, Telephone recordings, Multiple speakers
Background noise, Technical subject matter, Outdoor recording, Low quality digital files
Speakers using English as a second language
Poor recording quality due to inferior equipment.
Analog recordings made on cassette