Thanks for your advice 
I obtained correct dumps using "Wii disc dumper - v1.3" by nitrotux, CaitSith2 (from authors, WiiHTTP Dumper). There is not a necessity to use Waninkoko's "Wii DVD Dumper v1.2", because it gives a not correct result. I've read this information on gbatemp
Images that I've obtained:
System: Nintendo GameCube
Region: Europe
Game: Resident Evil (Disc 1)
Languages: English, French, German, Italian, Spanish
Serial: DL-DOL-GBIP-0-EUR
Version: 1.00
Edition: Original
Ring: 102G3002 DOL-GBIP-0-00 JPN S0
Barcode: 5 055060 950012Sectors: 712880
Size: 1459978240CRC32: 3431e6f1
MD5: c581fab5fd10f55b76188e86194199c1
SHA1: 3717ee92672a6c6194e34a8ec07111fc71d8e5f1
ED2K: 4832d231fa68eeb4f4e882099332c5d0
DOLMD5: 127ee0d1616a1f89ed9f74e07e10187aSystem: Nintendo GameCube
Region: Europe
Game: Resident Evil (Disc 2)
Languages: English, French, German, Italian, Spanish
Serial: DL-DOL-GBIP-1-EUR
Version: 1.00
Edition: Original
Barcode: 5 055060 950012
Ring: 102G2509 DOL-GBIP-1-00 JPN S0
Sectors: 712880
Size: 1459978240CRC32: e68566ac
MD5: 457944f833fc2f5e8ff394cfdf2e1b7c
SHA1: ef16289779911b90dda11789bc0f5fbd1d415d86
ED2K: 4412399e21f089a51019d177845d8bb5
DOLMD5: 127ee0d1616a1f89ed9f74e07e10187a
Please advise me, what tool should be used on Wii without SD-Gecko to obtain the correct dumps.