相変化型光 そうへんかがたひかりディスク

sō henkagata hikaridisuku

1. Not a phase-change optical disc.

1. Was a phase-change optical disc.

1. Phase-change optical disc

1. Phase-change optical disc; Phase-change disc

1. Not a phase-change optical disc.

1. Not a phase-change optical disc.

1. Phase-change optical disc was.

1. Phase-change disc; Optical disc

1. Is not a phase-change optical disc.

1. Wasn't a phase-change optical disc.

1. Phase-change optical disc; Probably a phase-change optical disc

1. Was not a phase-change optical disc.

1. Wasn't a phase-change optical disc.

1. Phase-change optical disc; Probably a phase-change optical disc

1. Was not a phase-change optical disc.

1. If it were a phase-change optical disc.; If it's a phase-change optical disc.

1. if it were a phase-change optical disc; if it is a phase-change optical disc

1. If/when phase-change optical disc