The Digi Memories are held by 8 Digimon, Barbamon wants these to remake the Digital World and make NEO be born. NEO ends up being born with just 6 of them, he quickly is able to take the final 2. When NEO is defeated all the Digimemories are released to rebuild the Digital World.

Dark Digi Memory (Dark Skull)- Owner Barbamon - Released by Barbamon - Now Part of NEO
Bird Digi Memory (Bird)- Owner Shou - Taken by Barbamon - Now Part of NEO
Holy Digi Memory (Cross)- Piccolomon - Taken to Barbamon - Now Part of NEO
Dragon Digimon Memory (Dragon) - Owner Tsurugi - Now Part of NEO
Beast Digimon Memory (Wolf) - Owner Yuu - Now Part of NEO
Insect Digi Memory (Beetle Horn) - Altur Kabuterimon - Taken to Barbamon - Now Part of NEO
Water Digi Memory - Owner Ami (Dolphin) - Taken to Barbamon - Now Part of NEO
Machine Digi Memory - Owner Andromon (cogs) - Taken to Barbamon - Now Part of NEO