5. https://www.ebay.de/itm/353836182512 (5039225031433 , SLES-51044-P-GER# , AML-50314.03 GER )
6. https://www.ebay.de/itm/225106177803 (5039225031433 , SLES-51044-P-GER , AML-50314.03 GER )
7. https://www.ebay.de/itm/363977564029 (5039225231659 , SLES-51044-P-GER , AML-50314.03 KAR )
5. Burnout 2: Point of Impact - Platinum (SLES-51044-P-GER#)
6. Burnout 2: Point of Impact - Platinum (SLES-51044-P-GER)
7. Burnout 2: Point of Impact - Platinum (AML-50314.03 KAR)
When doing descriptors for something like this, you want to be using some identifying feature that is different on all of the versions. Since [EU] is the parent, we have to also include the other entries which are already using a descriptor.
1.
https://vgcollect.com/item/42317 Burnout 2: Point of Impact - Platinum (Acclaim)
2.
https://vgcollect.com/item/57483 Burnout 2: Point of Impact - Platinum (Electronic Arts)
3.
https://vgcollect.com/item/119795 Burnout 2: Point of Impact - Platinum [FR][NL]
4.
https://vgcollect.com/item/227024 Burnout 2: Point of Impact - Platinum [IT]
Finding commonality must include these also. But they should use the things that make them different. So in your example below where you use 2 spine number and 1 back number, this is not ideal. We already see there are 3 different back numbers in the ones you posted, this is a good start but documenting this info will require you to get these numbers for the other versions that are already in the DB.
This is what I propose
1. Burnout 2: Point of Impact - Platinum (Acclaim)
2. Burnout 2: Point of Impact - Platinum (Electronic Arts)
3. Burnout 2: Point of Impact - Platinum
(Acclaim) [FR][NL]
4. Burnout 2: Point of Impact - Platinum
(Electronic Arts) [IT]
5. Burnout 2: Point of Impact - Platinum (Acclaim / GER)
6.
7. Burnout 2: Point of Impact - Platinum (Acclaim / KAR)
Leaving out 6 because you should try to figure out where that game comes from. Since it has a PEGI label on the cover, it indicates it is an import that was not released in Germany, and you should look at AT and CH sites to see if any show up on there for confirmation. If you can't find any other examples, you can choose to not add the item into the DB (unless you actually own it) and revisit researching it at a later date, or give it a name like so
Burnout 2: Point of Impact - Platinum (Acclaim / PEGI 3 / GER)