Scope
This document describes the difference between the ATSC 1 license and the Dolby Digital Plus Encoder license for the Linear Acoustic LA-5300
Description
In short - there is NO difference between these two options.
The “ATSC 1” option was renamed to “Dolby Digital Plus Encoder” option since it better reflects the functions enabled by this license. In fact, the Telos Part Number used to order this option remains the same (3002-00087-000).
If you see either “ATSC1” or “DDPLUS” in the Feature Keys section of the System menu page, you have this option installed

Feature Keys / License section of the LA-5300 System page
Starting with version 1.0.272a, this option also supports Dolby Digital Plus with Atmos encoding (sometime referred to as “DD+ JOC”). This means the available encoding modes are:
Dolby Digital 2.0 (2/0)
Dolby Digital 5.1 (3/2L)
Dolby Digital Plus 2.0 (2/0)
Dolby Digital Plus 5.1 (3/2L)
Dolby Digital Plus with Atmos (5.1.4)
Note: Dolby Digital is the brand name for AC-3; Dolby Digital Plus is the brand name for E-AC-3; Dolby Digital Plus with Atmos is the brand name for DD+ JOC
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