Are hdmi cables just hdmi cables?

[Blakeatron]

Forgive my ignorance but i have just purchased a new blu-ray player for the play room.

With it i picked up a £5.99 "high speed" cable, at the counter the cashier asked what size telly it was going to and when i said a 42" he told me the cable would not work and then i needed a £70 one!

Was i right?

My concern is that the blu-ray will plug into a soundbar controller and then the cable from that goes in the wall upto the tv, so if i need a sooper dooper cable i need to start chisseling again...

Will obviosly check when i am home but that wont be until tomorow and i want to make sure i will be ok when i get home!

Many thanks

If it helps all the gear is panasonic, tv is maybe 18months old plasma

[Blakeatron]

Thank you gents, put my mind at ease!

I was a bit worried as he was very serious and actually a bit intimidating, he was obviously cross when I refused the cable and the extra cover!

I wonder how many people will of paid the extra?

[Blakeatron]

Well we are now home, un boxed, plugged in and watching the lego movie.

Picture is fine! On a side note we have never had so much bass from the soundbar?!