# 6.2 XML Constraints
- Create: should mostly meet these constraints.
-TODO#1950: can languages from imported things get into the output?
- Verify: yes.
- Hint: probably not required.
- Create: TODO#1952
- Verify: yes.
-- Hint: TODO#1953
+- Hint: yes.
# 7.2.2 Language Element
- Create: not enforced.
- Verify: yes.
-- Hint: TODO#1954
+- Hint: yes.
# 7.2.3 StartTime Element
- Create: not enforced.
- Verify: yes.
-- Hint: yes, except TODO 79-character limit is not mentioned
+- Hint: yes.
# 7.3 Audio Sample Rates
# 9.1 Annotation Text
-- Create: yes (TODO#1956 disallow empty DCP names).
+- Create: yes.
- Verify: yes.
- Hint: n/a.
# 10.2.1 JPEG2000 Compression
- Create: yes.
-- Verify: TODO#1958 done but nobody is calling it AFAICS!
+- Verify: yes.
- Hint: n/a.
# 10.3 Sound Track Files
# 10.4.2 Resource ID
-- Create: TODO#1962 check
-- Verify: TODO#1962 check
+- Create: yes.
+- Verify: yes.
- Hint: n/a.
# 10.4.3 Container Duration
-- Create: TODO#1963 check
-- Verify; TODO#1963 check
+- Create: yes.
+- Verify; yes.
- Hint: n/a.
# Annex A Sign Language Video Encoding