OVERALL: R1

The US 2-disc "75th Anniversary Edition" includes restored Dracula audio and the most extras, though note that it´s missing the "Stephen Sommers" featurette from the "Legacy" collections.

General notes about the transfer (SPOILERS!)
Comparing "Legacy" to the previous "older releases" AND a new "75th Anniversary Edition", there are few differences in the soundtrack:
1) In the scene where Renfield is being strangled by Dracula, in the "older releases/75th AE", Renfield is screaming, but in the "Legacy" version, he barely screams at all.
-"Old version": at 67:21 min (PAL).
-"Legacy": at 70:08 min (NTSC).
2) In the final scene where Van Helsing is staking Dracula, in the "older releases/75th", Dracula is moaning several times, but in the "Legacy" version, he only moans one time.
-"Old version": at 70:00 min (PAL).
-"Legacy": at 72:55 min (NTSC).

CUTS:

• R1 75th Anniversary Edition America- Universal Pictures - No cuts (74:42 NTSC).
• R1 Double Feature America- Universal Pictures - No cuts (74:15 NTSC).
• R1 The Legacy Collection America- Universal Pictures - No cuts - Dracula's groaning and Renfield's screams are not in the original mono track (74:21 NTSC).
• R2 Germany- Universal Pictures - No cuts (71:20 PAL)
• R2 Scandinavia- Universal Pictures - No cuts (71:20 PAL)
• R2 The Legacy Collection Scandinavia- Universal Pictures - No cuts - Dracula's groaning and Renfield's screams are not in the original mono track (71:20 PAL).
• R2 United Kingdom- Universal Pictures - No cuts
• R2 Double Feature United Kingdom- Universal Pictures - No cuts
• R2 The Legacy Collection United Kingdom- Universal Pictures - No cuts - Dracula's groaning and Renfield's screams are not in the original mono track (71:20 PAL).
• R4 Australia- Universal Pictures - No cuts.

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Comparison added by The Rewind Team on 06/10/02
Comparison last updated by James-Masaki_Ryan on 08/02/16

UPDATE LOG:

08/02/16: Additions of Germany, UK Legacy, updated US Legacy, US 75, linked sequel films.