Simplify the following text for a Grade 12 native English-speaking person.
Original: On 19 December , Gackt released an album titled 0079-0088 containing 8 tracks , which had either previously been used on the soundtracks of the Mobile Suit Zeta Gundam movies or were covers of earlier songs from the Gundam franchise .
Simplified: It contains eight tracks , which had either previously been used on the soundtracks of the Mobile Suit Zeta Gundam movies or were covers of earlier songs from the Gundam franchise .