▁in ▁these ▁collections ▁are ▁derived ▁from ▁the ▁" Blue ▁Rib bon " ▁re issues ▁( alter ed ▁from ▁their ▁original ▁versions ▁with ▁their ▁re vised ▁front - and - end ▁credit ▁sequences ), ▁as ▁the ▁original ▁titles ▁for ▁these ▁cart o ons ▁are ▁pres umably ▁lost . ▁Where ▁the ▁original ▁titles , ▁instead ▁of ▁the ▁" Blue ▁Rib bon " ▁titles , ▁still ▁exist , ▁Warner ▁has ▁taken ▁the ▁" Blue ▁Rib bon " ▁titles ▁out . ▁ ▁A ▁hand ful ▁of ▁cart o ons ▁in ▁the ▁first ▁two ▁collections ▁and ▁the ▁bonus ▁cart o ons ▁on ▁Volume ▁ 6 ▁have ▁digital ▁video ▁noise ▁reduction ▁( D V NR ) ▁artifact ing . ▁The ▁noise ▁reduction ▁process ▁sometimes ▁un int ention ally ▁er ases ▁or ▁bl urs ▁some ▁of ▁the ▁picture ▁on ▁certain ▁scenes ▁of ▁the ▁cart o ons , ▁which ▁has ▁caused ▁controvers y ▁among ▁some ▁Lo oney ▁T unes ▁fans . ▁The ▁most ▁recent ▁collections , ▁however , ▁lack ▁such ▁artifact ing . ▁Since ▁August ▁ 2 0 0 7 , ▁Warner ▁B ros . ▁Home ▁Video ▁has ▁been ▁quietly ▁re iss uing ▁copies ▁of ▁the ▁fourth ▁disc ▁of ▁Volume ▁ 2 ▁that ▁la cks ▁artifact ing ▁and ▁inter la cing ▁because ▁of ▁numerous ▁compla ints ▁by ▁consum ers . ▁ ▁Begin ning ▁with ▁Volume ▁ 3 , ▁a ▁warning ▁was ▁printed ▁on ▁the ▁pack aging ▁explaining ▁that ▁the ▁collection ▁is ▁intended ▁for ▁adult s ▁and ▁the ▁content ▁may ▁not ▁be ▁suitable ▁for ▁children ▁( except ▁for ▁Volume ▁ 6 ,