Questions about LG BP450

I only have European DVDs. So unfortunately I can't give you an answer.

For WLAN, you don't need any cables at all. For Ethernet cables, it doesn't matter whether they are round or flat, because a Blu-Ray player like the LG BP450 can only transmit data at 100 Mbps, and an old Ethernet cable with Cat.5 is sufficient for that.

Unfortunately, nowhere does it say how resistant the unit is to DVDs with scratches and fingerprints. However, it is advisable to clean the CD well in case of grease stains: Mix alcohol and distilled water in a 1:1 ratio. Dip a lint-free cloth into the mixture. Carefully clean the CD in straight lines from the inside to the outside. You can remove light scratches with toothpaste: Rub the CD carefully with toothpaste and remove it after about five minutes with a soft cloth. Be careful not to clean the CD with circular movements. It is best to clean the CD with straight movements from the inside to the outside.

Is the question still relevant?

No.

I cannot play certain DVDs. I get the error message 'Wrong country code'. The NTSC label is on the cover of the DVD, among other things.

Ja, der DC In ist 12V/1A. Anbei ein Bild: https://www.htecmultimidia.com.br/media/catalog/product/cache/1/image/1200x1200/9df78eab33525d08d6e5fb8d27136e95/i/m/imgp9080_1.jpg