In this lesson the letter J is  described as sounding like the ge in garage

Is that the sound of the English or American pronounciation of ´garage´???

I can´t speak to the British pronunciation, but Turkish "j" corresponds to the most common American pronunciation of the second "g" in "garage".

Some Americans do pronounce it with a "d" plus the "g" sound, as you hear in the last sound in the word "judge" but the first pronunciation is more common.

The Turkish "j" can also be described as "zh" as in Dr. Zhivago, which although a Russian name, is pronounced correctly by most English speakers.

The same sound also occurs as the "z" in azure.

Another way of looking at it is that Turkish "Jandarma" is pronounced identically to the French/English "Gendarme" , except for the final "a" vowel in "Jandarma", which is silent in the English.

Thanks Dave for the explanation.

The British way of saying garage is more like "garidge" whereas the way Americans seems to say the same word is "gararge".

The Turkish letter ´J´ is pronounced as the English words jam and jar and Japan.

The same sound also occurs as the "z" in azure.

This is misleading as the ´z´ in azure is prounced as in the word craze; as is the a in azure by the way

The British way of saying garage is more like "garidge" whereas the way Americans seems to say the same word is "gararge".

The English pronounce it both ways depending on their regional accent. The first is how you will hear it said in the north of England and the the latter is how you will hear it in the south of England. Wales and Scotland have their own accent variations.

Not exactly. The words jam, jar, and Japan are pronounced with a slight "d" "preceeding the j.

The Turkish "j" is more like "s" in measure or leisure.

Thats how you may pronounce J in USA but not in England which is how I and my English neighbours pronouce it and is exactly the same as my neighbours in Turkey pronounce it

Thats how you may pronounce J in USA but not in England which is how I and my English neighbours pronouce it and is exactly the same as my neighbours in Turkey pronounce it

That may be how you pronounce it but it surely is not standard English, whether American or British. You can listen to the correct pronounciation on this link:

http://dictionary.reference.com/browse/jar?qsrc=2888

Or you don´t know how to pronounce Turkish "j". 

Here´s a link to Çetin Altan reading the alphabet. You´ll find plenty of examples of that sound under letter J.

http://langmedia.fivecolleges.edu/turkish/alfabe/index.html