he 50s:

1950-03-17 Willie Pep vs. Ray Famechon (Thanks, nikibilly)
engl. 10.08 Min. 106 MB, HL only
http://www.megaupload.com/de/?d=44W3UXIX

1950-08-09 Sugar Ray Robinson vs. Charley Fusari
coren clip, 1.28 Min. 6.35 MB
http://www.megaupload.com/de/?d=8OSZFKZX

from ghoster:
1950-09-27 Joe Louis vs. Ezzard Charles
engl. 43.53 Min. 292 MB
http://www.megarotic.com/de/?d=SHKCXRCM

1951-02-14 Sugar Ray Robinson vs. Jake La Motta VI
engl. 61:36 min. 612 MB (commentary: live radio broadcasting)
File 1 (307 MB)
http://www.megaupload.com/ru/?d=1C335MDV
File 2 (305 MB)
http://www.megaupload.com/ru/?d=8AXRGK1K
Join with hjsplit

1951-03-07 Ezzard Charles vs. Jersey Joe Walcott II
engl. 10.46 Min. 173 MB
http://www.megaupload.com/de/?d=JOXC27AO

1951-07-10 Sugar Ray Robinson vs. Randy Turpin I
corean clip 1.51 Min. 7.96 MB
http://www.megaupload.com/de/?d=WSUDJ3OM

from nikibilly:
1951-07-18 Ezzard Charles vs. Jersey Joe Walcott III
engl. 10.52 Min. 175 MB
http://www.megaupload.com/de/?d=V3L46JQB

from fluffytype R:
1951-09-26 Willie Pep vs. Sandy Sadler III
engl. 08.39 Min. 99 MB
http://www.megaupload.com/de/?d=F2IUTJAH

from mephist:
1951-10-26 Rocky Marciano vs. Joe Louis
http://www.sexuploader.com/?d=7O258ABB
size: 270Mb; decent quality

1951-11-07 Kid Gavilan vs. Tony Janiro
ital. 9.57 Min. 80.9 MB
http://www.megaupload.com/de/?d=U9M59BOM

1952-04-16 Sugar Ray Robinson vs. Rocky Graziano
corean clip, 8.39 Min. 61.8 MB
http://www.megaupload.com/de/?d=CTX7HQVC

from mephist:
1952-05-21 Jake LaMotta vs. Eugene Hairston II
engl. 41.12 Min. 350 MB
http://www.megarotic.com/de/?d=XQY9MWOH

Thanks to Duran Fan and to the original uploader
1952-06-25 Sugar Ray Robinson vs. Joey Maxim
corean clip, 2.07 Min 9.15 MB (res.rd.1,2,13)
ttp://www.megaupload.com/de/?d=RGB4B4KK

1952-09-23 Rocky Marciano vs. Jersey Joe Walcott I
engl. 51.35 Min. 514 MB
file 1 (258 MB)
http://www.megaupload.com/de/?d=HJWOCRKV
file 2 (256 MB)
http://www.megaupload.com/de/?d=7JBPRQTW

(uploader: fluffytipe R)
1953-05-15 Rocky Marciano vs. Jersey Joe Walcott II
engl. 5.40 min. 50 MB
http://www.megaupload.com/de/?d=A8CQEQ5S

by old school:
1953-09-18 Kid Gavilan vs. Carmen Basilio
engl. 49.39 min. 254 MB
http://www.megaupload.com/?d=V30B1Y3E

1953-09-24 Rocky Marciano vs. Roland LaStarza
corean clip, 10:30 min. 37.,8 MB,
http://www.megaupload.com/de/?d=P1REL595

uploaded by ghoster:
1953-12-16 Ezzard Charles vs. Coley Wallace
engl. 31.48 min. 349 MB
http://www.megaupload.com/?d=DNU532SE

1954-06-07 Floyd Patterson vs Joey Maxim
engl. 9.28 Min. 206 MB
http://www.megaupload.com/de/?d=BFGIJBS2

1954-06-17 Rocky Marciano vs Ezzard Charles I
engl. 13.34 min. 70 MB (commented by Marciano)
http://www.megaupload.com/?d=ENEONN8E

another version from nikibilly:
engl. 18.55 min. 306 MB
http://www.sexuploader.com/?d=2XMB5X5A

uploader: mephist
1954-09-17 Rocky Marciano vs. Ezzard Charles II (Ring Mag FOTY )
engl. 8.38 min. 76.5 MB
http://www.megaupload.com/?d=WIHCDK5Z

1955-04-03 Ingemar Johansson vs. Uber Bacilieri
no sound 10.07 Min. 79.5 MB
http://www.megaupload.com/?d=6QELXD9X

1955-05-16 Rocky Marciano vs. Don Cockell
german clip, 1.45 Min. 17.5 MB
http://www.megaupload.com/de/?d=ZNRHRTJ9

uploaded by ghoster:
1955-06-08 Ezzard Charles vs. John Holman II
engl. 38.01 min. 449 MB
http://www.megaupload.com/?d=6WZK979A

1955-07-22 Sugar Ray Robinson vs. Rocky Castellani
corean, 11.16 Min. 51 MB
http://www.megaupload.com/de/?d=WNSDIE8E

1955-08-28 Ingemar Johannson vs. Hein ten Hoff
swedish clip, 1.14 Min. 10 MB
http://www.megaupload.com/de/?d=XNV9AM5H

1955-09-21 Rocky Marciano vs. Archie Moore
clip in corean, 13:55 minutes, 50 MB
http://www.megaupload.com/ru/?d=0PP98Q1A

1955-12-09 Sugar Ray Robinson vs. Carl Olson I
corean clip, 1.16 Min. 4.57 MB
http://www.megaupload.com/ru/?d=AIC3N2KG

1956-09-12 Johnny Saxton vs. Carmen Basillio
engl. 35.12 min. 580 MB
http://files.filefront.com//;6771261;;/
Hurray, Mr. MSS!!!!

1956-11-30 Floyd Patterson Vs Archie Moore (by old school)
engl. 6.52 min. 48.4 MB
http://www.megaupload.com/?d=FKCOB7YM

1957-05-01 Gene Fullmer vs. Sugar Ray Robinson II
corean clip, 2.01 Min. 7.23 MB
http://www.megaupload.com/ru/?d=UU336YS2

old school's
1957-07-29 Floyd Patterson vs. Tommy Hurricane Jackson II
engl. 46.03 min. 351 MB
http://www.megaupload.com/?d=UIJ51H5O

from mephist:
1957-09-23 Sugar Ray Robinson vs. Carmen Basilio I
engl. 19.01 min. 259 MB
http://www.megaupload.com/ru/?d=R0KWJ06L

and, from mephist as well:
1958-03-25 Sugar Ray Robinson vs. Carmen Basilio II
engl. 18.14 min. 240 MB
http://www.megaupload.com/ru/?d=JR62MZTD

1958-08-06 Sonny Liston vs. Wayne Bethea
engl. 1.51 Min. 50 MB
http://www.megaupload.com/ru/?d=2BNT8I5M

1958-10-24 Sonny Liston vs. Bert Whitehurst II
engl. 21.43 Min. 219 MB
http://www.megaupload.com/ru/?d=YVLRVVLP

found by ghoster (both, I & II Archie-Durelle fights):
1958-12-10 Archie Moore vs. Yvon Durelle I
corean, 28.39Min. 103 MB
http://www.megaupload.com/de/?d=RD8G92

1959-04-15 Sonny Liston vs. Cleveland Williams I
engl. 11.41 Min. 249 MB
http://www.megaupload.com/de/?d=UA9RW5Z7

1959-06-26 Floyd Patterson vs. Ingemar Johansson I
engl. 1.38 min. 13.2 MB (3rd rd KO)
http://www.megaupload.com/de/?d=707V1ZE3

by mephist:
1959-08-28 Gene Fullmer vs Carmen Basilio I
engl. 14.05 min. 131 MB
http://www.megaupload.com/de/?d=RCG8S3L0

1959-09-12 Archie Moore vs Yvon Durelle II
corean clip, 9.54 min. 35.6 MB
http://www.megaupload.com/?d=HRUL8C4D

1959-11-17 George Chuvalo vs. Yvon Durelle
clip, no sound, 1.20 Min. 44.7 MB
http://www.megaupload.com/?d=SHPK7ELP