Getting my DVD back!

[Chasingcars]

After some advise please...
I was working with a personal trainer once a week for last few months. During that time I lent him a DVD of a skydive i had done as he was planning on doing one and thought it may help.
Since then, he has taken on another job and can no longer train me which is fine, everything was left amicable, and I thanked him for his help over last few months etc. He said he would mail me the DVD the following week but it never arrived.
He could be a bit disorganised so left it couple of weeks and sent him an email to remind him as didnt want to forget about it. Still nothing. Left it another couple of weeks and sent a text, still nothing - oddly not even a reply. I said if he was busy i could collect it or would send a prepaid enevlope so he culd just drop it in a post box but nothing.
I wouldnt be so worried if it was a movie or something but as its a one off dvd i paid for its quite sentimental. What im asking is how do i get this DVD back?! Ive tried being friendly so what should I do now? He lives in a small village and has unusal surname so could probably find out where he lives via directory enquiries etc but does that look a bit OTT??
Do i have any legal rights though dont really want to go down that route but im running out of being nice!

[tiggerblue10]

He may have lost it. Years ago I lent a friend the whole Blackadder collection and when I asked for it back (around a year later), she said she had lost it.

[tiggerblue10]

Forgot to say that I was extremely annoyed.

[bednobs]

just ring him - if you texted him you must have his number

[Chasingcars]

In total it was only about 6 weeks ago since i lent him so i hoped he hasnt lost it!
To answer bednobs, i did try again and call but phone just goes to voicemail and he hasnt called back. I dont know if i keep calling will i look like a bit of a stalker?!

[alexanderd]

I think he is too embarassed to tell you he has lost it. If you can find out where he lives go and confront him, its probably the only way you will get an answer

[Chasingcars]

Further to my earlier emails, I have attempted to call again but to be greeted with voicemail. I have left a short message but no calls back, and no DVD.
Does anyone now know my legal rights in this situation? Yes i could just go around to his house but chances are if he knows its me, he wont answer.
I know it probably sounds petty to get wound up over a dvd but it has a lot of sentimental value and cost me a lot to have made. Thanks