Kad već nema sinkronizacije, provjerite titlove.

Not literally. In this sentence, kad već is an idiomatic combination.

• kad can mean when, but depending on context it can also feel like if or since
• već often adds a nuance like already, anyway, as it is, or given that

So Kad već nema sinkronizacije... means something like:

• Since there’s no dubbing anyway...
• If there’s no dubbing...
• Given that there’s no dubbing...

It sounds natural and slightly conversational. The već adds a sense of accepting the situation and moving on to the next practical step.

Because nema normally takes the genitive in Croatian when it means there is no / there isn’t.

So:

• sinkronizacija = nominative singular
• sinkronizacije = genitive singular

That is why you get:

• nema sinkronizacije = there is no dubbing

This is a very common pattern:

• ima vremena = there is time
• nema vremena = there is no time
• ima novca = there is money
• nema novca = there is no money

So here sinkronizacije is in the genitive because it follows nema.

In this context, sinkronizacija means dubbing—that is, replacing the original spoken audio with voices in another language.

Even though the word may look like synchronization, in film/TV/media contexts it commonly refers to dubbed audio.

So:

• sinkronizacija = dubbing
• titlovi = subtitles

The sentence contrasts those two options: if there is no dubbed version, check the subtitles instead.

Provjerite is the imperative form meaning check!, but specifically for:

• you all (2nd person plural), or
• you in a polite/formal singular sense

Compare:

• provjeri = check! (to one person, informal)
• provjerite = check! (to several people, or to one person politely/formally)

So this sentence sounds like an instruction you might see in a menu, app, help page, public notice, or customer-facing message, where the polite/plural form is standard.

Yes, it matters a little.

Provjerite comes from provjeriti, which is a perfective verb. Perfective verbs are often used for a single, complete action.

So here:

• provjerite titlove = check the subtitles as one practical action

That fits the context well: the sentence is telling you to do one concrete thing.

If Croatian used an imperfective imperative instead, it would more likely suggest repeated, ongoing, or habitual checking, which is not the point here.

Because titlove is the accusative plural, and it is the direct object of provjerite.

The noun is:

• singular nominative: titl
• plural nominative: titlovi
• plural accusative: titlove

Since the sentence says check subtitles, subtitles is the thing being checked, so Croatian uses the accusative:

• provjerite titlove

This is a normal direct-object pattern after a verb like provjeriti.

Because Croatian usually does not need subject pronouns when the verb ending already shows who the subject is.

Here, provjerite already tells us the subject is:

• you all, or
• you formal

So adding vi would usually be unnecessary unless you wanted extra emphasis.

This is very common in Croatian:

• Dođi. = Come.
• Dođite. = Come. / Come in.
• Provjerite titlove. = Check the subtitles.

The subject is understood from the verb form.

It is closer to since or if in this sentence.

On its own, kad often does mean when:

• Kad dođeš, nazovi me. = When you arrive, call me.

But in sentences like this one, especially with već, it often has a more causal or situational sense:

• Kad već nema sinkronizacije... = Since / given that / if there’s no dubbing...

So the basic word is still kad, but the natural English translation depends on the situation, not just the dictionary meaning.

Because the sentence begins with a dependent clause:

• Kad već nema sinkronizacije = subordinate clause
• provjerite titlove = main clause

Croatian normally uses a comma to separate that kind of introductory subordinate clause from the main clause.

So the punctuation is standard and expected here.

Yes, often it could.

Both can refer to subtitles, but:

• titlovi is very common and shorter
• podnaslovi is also standard and may feel a bit more formal or explicit

In everyday media/interface language, titlovi is extremely common.

So provjerite titlove is perfectly natural.

It sounds mostly neutral to semi-formal.

Reasons:

• provjerite is the polite/plural imperative
• the structure sounds like a public instruction, app message, help text, or official notice
• kad već adds a slightly conversational nuance, but not in an overly casual way

So overall it sounds natural for a user-facing instruction: polite, practical, and not overly stiff.