ok i'm no expert on computers or anything really but i have used this before i'll try and explain what i did so hope it helps.
firstly the disk you need is season 7 disk 1, insert it into your computer or laptop
if when you insert the disk a window pops up click on the "open folder to veiw files" one this will take you throught to files stored on the disk, the options on mine are "video_ts" and "willow_demon) click the willow_demon folder.once you have opened this folder 5 options have come up for me i clicked the one called "demon database_s7" its a logo of a diamond with a cog and arrow in on my screen and appears second in my list of 5 files. this then opens the demon database for you to veiw
if however when you insert your disk this window does not come up or the disk starts playing close the playing down. from here you need to go to "my computer" when you have opened this right click on the disk drive logo. the option you need in the menu that will appear is explore click this and it will open a new window containing "video_ts" and "willow_demon". as i mentioned earlier click the "willow_demon" file this should open the folder showing 5 files availabe. the one you want is "demon database_s7" its a logo of a diamond with a cog and arrow in on my screen and appears second in my list of 5 files. this should open the demon database.
hope this helps people and that its easy enough to follow, it worked for me.