Below is an instruction that describes a task. Write a response that appropriately completes the request.

### Instruction:
Which DVD Title has a Region 1 of n/a and greater than 3 in No. of Discs?

### Inputs:
table_name: table, columns: ['DVD Title', 'No. of Discs', 'Year', 'No. of Episodes', 'Region 1', 'Region 2', 'Region 4']

### Response:
SELECT DVD Title FROM table WHERE Region 1 = n/a AND No. of Discs > 3