I took a look at the network traffic from the freedb.org lookups, and it looks like there's something going wrong...
So the first request returns two entries for the correct album (Chicago, Greatest Hits 1982-1989), but then three more requests are made, two returning "no such CD entry in DB" (for blues and classical), but then the last one returns just one full entry for "supersonic girl" with some Chinese characters as band name and in titles. This last (wrong!) entry is then displayed in Express Rip.
I wish the program would let me chose which of the entries found (2 of the 3 are correct, just the one displayed is wrong) is the correct one for me. I only did this for this CD, but I strongly assume it's the same cause for the problems with wrong data for other CDs as well.
59 3.819799 192.168.1.3 195.214.216.38 HTTP 245 GET /~cddb/cddb.cgi?cmd=cddb+query+a10c480c+12+183+23278+41505+58680+84445+107418+126498+143758+161215+182518+201743+219218+3146&hello=anonymous+localhost+ExpressRip+3.00&proto=6 HTTP/1.0
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210 Found exact matches, list follows (until terminating `.')\r\n
rock a10c480c Chicago / Greatest Hits 1982-1989 [Reprise 9 26080-2]\r\n
reggae a10c480c Chicago / Greatest Hits 1982~1989\r\n
.\r\n
67 3.878596 192.168.1.3 195.214.216.38 HTTP 165 GET /~cddb/cddb.cgi?cmd=cddb+read+blues+a10c480c&hello=anonymous+localhost+ExpressRip+3.00&proto=6 HTTP/1.0
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401 blues a10c480c No such CD entry in database.\r\n
77 3.935130 192.168.1.3 195.214.216.38 HTTP 169 GET /~cddb/cddb.cgi?cmd=cddb+read+classical+a10c480c&hello=anonymous+localhost+ExpressRip+3.00&proto=6 HTTP/1.0
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401 classical a10c480c No such CD entry in database.\r\n
87 3.992695 192.168.1.3 195.214.216.38 HTTP 167 GET /~cddb/cddb.cgi?cmd=cddb+read+country+a10c480c&hello=anonymous+localhost+ExpressRip+3.00&proto=6 HTTP/1.0
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210 country a10c480c CD database entry follows (until terminating `.')\r\n
# xmcd CD database file\r\n
#\r\n
# Track frame offsets:\r\n
#\t150\r\n
#\t19720\r\n
#\t37215\r\n
#\t55790\r\n
#\t76479\r\n
#\t95436\r\n
#\t112383\r\n
#\t135348\r\n
#\t156899\r\n
#\t176352\r\n
#\t198381\r\n
#\t215371\r\n
#\r\n
# Disc length: 3146 seconds\r\n
#\r\n
# Revision: 0\r\n
# Processed by: cddbd v1.5.2PL0 Copyright (c) Steve Scherf et al.\r\n
# Submitted via: CD2WAV32(JP) R3.22\r\n
#\r\n
DISCID=a10c480c\r\n
DTITLE=\346\260\264\346\250\271\345\245\210\343\200\205 / supersonic girl\r\n
DYEAR=2001\r\n
DGENRE=Pop\r\n
TTITLE0=Love\342\200\231s Wonderland\r\n
TTITLE1=The place of happiness\r\n
TTITLE2=supersonic girl\r\n
TTITLE3=Heaven Knows\343\200\234Brave edit\343\200\234\r\n
TTITLE4=\346\203\263\343\201\204\343\200\234Pedigreed mix\343\200\234\r\n
TTITLE5=Look Away\343\200\234All together version\343\200\234\r\n
TTITLE6=TRANSMIGRATION\r\n
TTITLE7=LOOKING ON THE MOON\r\n
TTITLE8=\347\234\237\345\206\254\343\201\256\350\246\263\350\246\247\350\273\212\r\n
TTITLE9=NANA\350\211\262\343\201\256\343\202\210\343\201\206\343\201\253\343\200\234Special album version\343\200\234\r\n
TTITLE10=\346\260\264\344\270\255\343\201\256\351\235\222\347\251\272\r\n
TTITLE11=WINDOW OF HEART\r\n
EXTD=\r\n
EXTT0=\r\n
EXTT1=\r\n
EXTT2=\r\n
EXTT3=\r\n
EXTT4=\r\n
EXTT5=\r\n
EXTT6=\r\n
EXTT7=\r\n
EXTT8=\r\n
EXTT9=\r\n
EXTT10=\r\n
EXTT11=\r\n
PLAYORDER=\r\n
.\r\n