The day I went to the live might be the one they recorded for the DVD.
The day I went to the live might be on the DVD.
「私が見に行った日のライブはDVD化されるかもしれません」
“The day I went to the live might be the one they recorded for the DVD.”
“The day I went to the live might be on the DVD.”
the day I went - 私が（見に）行った日
on the DVD - DVD化される
might - かもしれません
オーストラリア 
