I have a durabrand 7inch portable DVD player.

if you bought this unit from walmart you could call there customer service and they may be able to help you find a supplier no to see if these parts are still available Durabrand Technical Support, Parts and Accessories

http://1800customersupport.com/

Also the support division of these companies:

Audiovox
Durabrand
ILO
Kawasaki
Lextron
Magnavox
RCA
Trutech
V7
Venturer

The actual manufacturer:
:
Alco Electronics

Hong Kong
Company : Alco International Ltd.
Address : 11/F, Zung Fu Industrial Building, 1067 King's Road, Quarry Bay, Hong Kong.
Telephone : (852) 2880 0698
Fax : (852) 2880 0858
E-mail : marketing@alco.com.hk
Website : http://www.alco.com.hk


EUROPE
Company : Venturer Electronics Europe Ltd.
Address : Unit D, Bourne Park, Cores End Road, Bourne End, Bucks SL8 5LS, United Kingdom.
Telephone : (44 1628) 527 757
Fax : (44 1628) 527 794
http://www.alco.com.hk/main/